White-fronted Nunbird Costa Rica

2021 is already well underway, are you birding? I hope so because watching a flock of redpolls bound through wintery airs that echo with the calls of crows is nature connection magic. Tracking the soaring of a Bateleur in hot African skies is a lifetime gift. Watching Baltimore Orioles consort with Blue-gray Tanagers as Great Kiskadees throw down their wings and yell is the perfect start to any day.

I saw some of that avian action this morning.

During anxious times, birding is therapeutic, it brings us back to center, can wipe away the worries and act as a source of mental fortitude. Watch some birds today and see where it takes you. Watch some birds all year long and enjoy the journey, keep a list. I follow the year list birding tradition. I’m not sure when it started, who ever kept the first list, but it gives me something to strive for, facilitates noting each special moment like when I saw that first Painted Bunting of 2021.

I saw a male just out back this very morning. It flew to some bare branches near a Yellow-throated Euphonia and a pair of Blue Grosbeaks.

I can also note my first White-fronted Nunbird, I had a few at Tirimbina Reserve just the other day. 

Although I would love to see some birds elsewhere, even if I don’t, my year list will make for some fun documentation. After all, Costa Rica is no small player on the world birding stage. We have nearly 930 species on the official list and with some effort, 700 in a year is a feasible goal. Here I go, I hope you also surpass your birding goals in 2021.

  1. Great Tinamou – Tinamus major; Tirimbina, 9-Jan
  2. Little Tinamou – Crypturellus soui; Ciudad Neily area, 3-Feb
  3. Thicket Tinamou – Crypturellus cinnamomeus; Rincon de la Vieja, 27-Feb
  4. Slaty-breasted Tinamou – Crypturellus boucardi; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  5. Great Curassow – Crax rubra; Rincon de la Vieja, 27-Feb
  6. Crested Guan – Penelope purpurascens; Carara area, 13-Feb
  7. Gray-headed Chachalaca – Ortalis cinereiceps; Tirimbina, 9-Jan
  8. Plain Chachalaca – Ortalis vetula; Cabuya, 2-Nov
  9. Black Guan – Chamaepetes unicolor; Poas area, 27-Jan
  10. Greater White-fronted Goose – Anser albifrons; Las Trancas, 10-December 
  11. Black-bellied Whistling-Duck – Dendrocygna autumnalis; Tirimbina, 9-Jan
  12. Fulvous Whistling-Duck – Dendrocygna bicolor; El Viejo Wetlands, 23-Dec
  13. Muscovy Duck – Cairina moschata; Embalse Turrucares, 16-Jan 
  14. American Wigeon – Mareca americana; Ciudad Neily area, 3-Feb
  15. Blue-winged Teal – Anas discors; Embalse Turrucares, 16-Jan
  16. Cinnamon Teal – Anas cyanoptera; Ciudad Neily area, 3-Feb
  17. White-cheeked Pintail – Anas bahamensis; Punta Morales, 3-Nov
  18. Northern Pintail – Anas acuta; Ciudad Neily area, 3-Feb
  19. Northern Shoveler – Spatula clypeata; Ciudad Neily area, 3-Feb
  20. Lesser Scaup – Aythya affinis; Ciudad Neily area, 3-Feb
  21. Buffy-crowned Wood-Partridge – Dendrortyx leucophrys; Providencia area, 18-Feb
  22. Spotted Wood-Quail – Odontophorus guttatus; Providencia area, 18-Feb
  23. Crested Bobwhite – Colinus cristatus; Guacalillo, 30-Jan
  24. Least Grebe – Tachybaptus dominicus; Ciudad Neily area, 3-Feb
  25. Rock Pigeon – Columba livia; San Joaquin de Heredia, 1-Jan
  26. Band-tailed Pigeon – Patagioenas fasciata; Providencia area, 18-Feb
  27. Red-billed Pigeon – Patagioenas flavirostris; San Joaquin de Heredia, 1-Jan
  28. Pale-vented Pigeon – Patagioeanas cayannensis; Ciudad Neily area, 3-Feb
  29. Scaled Pigeon – Patagioenas speciosa; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  30. Ruddy Pigeon – Patagioenas subvinacea; Poas area, 23-Jan
  31. Short-billed Pigeon – Patagioenas nigrirostris; Carara area, 13-Feb
  32. Inca Dove – Columbina inca; San Joaquin de Heredia, 1-Jan
  33. Plain-breasted Ground-Dove – Columbina minuta; Ceiba de Orotina, 19-Jan
  34. Common Ground-Dove – Columbina passerina; San Joaquin de Heredia, 1-Jan
  35. Ruddy Ground-Dove – Columbina talpacoti; Tirimbina, 9-Jan
  36. Blue Ground-Dove – Claravis pretiosa; Ciudad Neily area, 3-Feb
  37. Maroon-chested Ground-Dove – Claravis mondetoura; Nochebuena Restaurant trails, 25-June
  38. Ruddy Quail-Dove – Geotrygon montana; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  39. Chiriqui Quail-Dove – Zentrygon chiriquiensis; Valle Quetzales, 2-March
  40. Purplish-backed Quail-Dove – Zentrygon lawrencii; Pocosol Research Station, 27-July
  41. Buff-fronted Quail-Dove – Zentrygon costaricensis; Poas area, 27-Jan
  42. White-tipped Dove – Leptotila verreauxi; San Joaquin de Heredia, 1-Jan
  43. Gray-chested Dove – Leptotila cassinii; Carara area, 13-Feb
  44. Gray-headed Dove – Leptotila plumbeiceps; Malpais, 19-April 
  45. White-winged Dove – Zenaida asiatica; San Joaquin de Heredia, 1-Jan
  46. Mourning Dove – Zenaida macrora; Ceiba de Orotina, 19-Jan
  47. Mangrove Cuckoo – Coccyzus minor; Guacalillo, 30-Jan
  48. Yellow-billed Cuckoo – Coccyzus americanus; San Miguel de Turrucares, 26-Sep
  49. Squirrel Cuckoo – Piaya cayana; San Joaquin de Heredia, 1-Jan
  50. Groove-billed Ani – Crotophaga sulcirostris; San Joaquin de Heredia, 1-Jan
  51. Smooth-billed Ani – Crotopgaha ani; Ciudad Neily area, 3-Feb
  52. Striped Cuckoo – Tapera naevia; Ceiba de Orotina, 19-Jan
  53. Lesser Ground-Cuckoo – Morrococcyx erythropygus; Guacalillo, 30-Jan
  54. Great Potoo – Nyctibius grandis; Union de Guapiles, 15-March
  55. Northern Potoo – Nyctibius jamaicensis; Malpais, 19-April 
  56. Short-tailed Nighthawk – Lurocalis semitorquatus; Tortuguero National Park area, 14-April
  57. Common Nighthawk – Chordeilis minor; Tortuguero National Park area, 14-April
  58. Lesser Nighthawk – Chordeilis acutipennis; Manzanillo, 9-Oct
  59. Common Pauraque – Nyctidromus albicollis; San Joaquin de Heredia, 1-Jan
  60. Dusky Nightjar – Antrostomus saturatus; Providencia area, 18-Feb
  61. Black Swift – Cypseloides niger; Pozo Azul, 28-March
  62. Spot-fronted Swift – Cypseloides cherriei; Malpais, 19-April 
  63. White-chinned Swift – Cypseloides cryptus; Bosque de Nino, 6-March
  64. White-collared Swift – Streptoprocne zonaris; Cinchona, 6-Feb
  65. Chestnut-collared Swift – Streptoprocne rutila; Bosque de Nino, 6-March
  66. Chimney Swift – Chaetura pelagica; Tortuguero National Park area, 7-April
  67. Vaux’s Swift – Chaetura vauxi; San Joaquin de Heredia, 1-Jan
  68. Gray-rumped Swift – Chaetura cinereiventris; Tirimbina, 9-Jan
  69. Costa Rican Swift – Chaetura fumosa; Ciudad Neily area, 3-Feb
  70. Lesser Swallow-tailed Swift – Panyptila cayannensis; Ciudad Neily area, 3-Feb
  71. White-necked Jacobin – Florisuga mellivora; Tirimbina, 9-Jan
  72. White-tipped Sicklebill – Eutoceres aquila; Quebrada Gonzalez, 3-August
  73. Green Hermit – Phaethornis guy; Poas area, 23-Jan
  74. Long-billed Hermit – Phaethornis longirostris; Tirimbina, 9-Jan
  75. Stripe-throated Hermit – Phaethornis striigularis; Tortuguero National Park area, 7-April
  76. Band-tailed Barbthroat – Threnetes ruckeri; La Selva area, 9-Jan
  77. Bronzy Hermit – Glaucis aeneus; Ciudad Neily area, 3-Feb
  78. Green-fronted Lancebill – Doryfera ludovicae, San Luis Canopy, 12-Sep
  79. Lesser Violetear – Colibri cyanotus; Varablanca area, 9-Jan
  80. Brown Violetear – Colibri delphinae; Cinchona, 17-May 
  81. Veraguan Mango – Anthracothorax veraguensis; Ciudad Neily area, 3-Feb
  82. Green-breasted Mango – Anthracothorax prevostii; Pozo Azul, 28-March
  83. Purple-crowned Fairy – Heliothryx barroti; Pocosol Research Station, 27-July
  84. Green Thorntail – Discosura conversii; Cinchona, 6-Feb
  85. Black-crested Coquette – Lophornis helenae; Rio Negro area northern flank Rincon de la Vieja, 24-March
  86. Violet-headed Hummingbird – Klais guimeti; Rio Negro area northern flank Rincon de la Vieja, 24-March  
  87. Bronze-tailed Plumeleteer – Chalybura urochrysia; Tirimbina, 9-Jan
  88. Scaly-breasted Hummingbird – Phaeochroa cuvierii; Tirimbina, 9-Jan
  89. Green-crowned Brilliant – Heliodoxa jacula; Cinchona, 6-Feb
  90. Talamanca Hummingbird – Eugenes spectabilis; Poas area, 27-Jan
  91. Plain-capped Starthroat – Heliomaster constantii; Guacalillo, 30-Jan 
  92. Long-billed Starthroat – Heliomaster longrostris, Union de Guapiles, 12-Sep
  93. Crowned Woodnymph – Thalurania colombica; Tirimbina, 9-Jan
  94. Fiery-throated Hummingbird – Panterpe insignis; Poas area, 23-Jan
  95. Violet Sabrewing – Campylopterus hemileucurus; Poas area, 27-Jan
  96. Purple-throated Mountain-gem – Lampornis calolaemus; Poas area, 23-Jan
  97. White-throated Mountain-gem – Lampornis castaneoventris; Providencia area, 18-Feb
  98. White-bellied Mountain-gem – Lampornis hemileucus; Cinchona, 6-Feb
  99. Stripe-tailed Hummingbird – Eupherusa eximia; Providencia area, 18-Feb
  100. Black-bellied Hummingbird – Eupherusa nigriventris; Cinchona, 17-May 
  101. Ruby-throated Hummingbird – Archilochus colubris; Embalse Turrucares, 16-Jan
  102. Mangrove Hummingbird – Amazilia boucardi; Mata de Limon, 6-August
  103. Snowy-bellied Hummingbird – Amazilia edward; Providencia area, 18-Feb
  104. Blue-vented Hummingbird – Amazilia hoffmanni; San Joaquin de Heredia, 1-Jan
  105. Rufous-tailed Hummingbird – Amazilia tzacatl; San Joaquin de Heredia, 1-Jan
  106. Charming Hummingbird – Amazilia decora; Ciudad Neily area, 3-Feb
  107. Blue-chested Hummingbird – Amazilia amabilis; Tirimbina, 9-Jan
  108. Cinnamon Hummingbird – Amazilia rutila; Ceiba de Orotina, 19-Jan
  109. Sapphire-throated Hummingbird – Lepidoyga coeruleogularis; Ciudad Neily area, 3-Feb
  110. Snowcap – Microchera albocoronata; El Copal, 29-July
  111. Coppery-headed Emerald – Elvira cupreiceps; Poas area, 23-Jan
  112. White-tailed Emerald – Elvira cupreiceps; Bosque Tolomuco, 27-Dec
  113. Blue-throated Goldentail – Hylocharis eliciae; Ciudad Neily area, 3-Feb
  114. Canivet’s Emerald – Chlorostilbon canivetii; Rincon de la Vieja, 27-Feb
  115. Magenta-throated Woodstar – Calliphlox bryantae; Valle Quetzales, 2-March
  116. Volcano Hummingbird – Selasphorus flammula; Poas area, 23-Jan
  117. Scintillant Hummingbird – Selasphorus scintilla; Poas area, 27-Jan
  118. White-throated Crake – Laterallus albigularis; La Selva area, 9-Jan
  119. Gray-breasted Crake – Laterallus exilis; Tortuguero National Park area, 8-April
  120. Paint-billed Crake – Neocrez erythrops; Jaco wetlands, 8-May
  121. Uniform Crake – Amaurolimnas concolor; Rio Negro area northern flank Rincon de la Vieja, 24-March
  122. Spotted Rail – Pardirallus maculatus; Las Trancas, 11-December 
  123. Sora – Porzana carolina; Las Trancas, 22-Dec
  124. Rufous-necked Wood-Rail – Aramides axillaris; Malpais, 19-April 
  125. Russet-naped Wood-Rail – Aramides albiventris; Tortuguero National Park area, 7-April
  126. Gray-cowled Wood-Rail – Aramides cajaneus; San Joaquin de Heredia, 1-Jan
  127. Purple Gallinule – Porphyrio martinicus; Ciudad Neily area, 3-Feb
  128. Common Gallinule – Crypturellus soui; Ciudad Neily area, 3-Feb
  129. American Coot – Fulica americana; Ciudad Neily area, 3-Feb
  130. Limpkin – Aramus guarauna; Bagaces, 11-December 
  131. Northern Jacana – Jacana spinosa; Embalse Turrucares, 16-Jan
  132. Sungrebe – Heliornis fulica; Tortuguero National Park area, 7-April
  133. Double-striped Thick-Knee – Burhinus bistriatus; Ceiba de Orotina, 21-March
  134. American Oystercatcher – Haematoupus palliatus; Dominical, 1-Feb
  135. Southern Lapwing – Vanellus chilensis; Ceiba de Orotina, 19-Jan
  136. Black-bellied Plover– Charadrius squatarola; Punta Morales, 8-May 
  137. Collared Plover – Charadrius collaris; Punta Morales, 16-Oct 
  138. Wilson’s Plover – Charadrius wilsonia; Punta Morales, 23-March 
  139. Semipalmated Plover– Charadrius semipalmatus; Punta Morales, 23-March 
  140. Killdeer – Charadrius vociferus; San Joaquin de Heredia, 23-Jan
  141. Black-necked Stilt – Himantopus mexicanus; Ciudad Neily area, 3-Feb
  142. Upland Sandpiper – Bartramia longicauda, Airport, 3-Sep
  143. Ruddy Turnstone – Arenaria interpres; Malpais, 19-April 
  144. Sanderling – Calidris alba; Puntarenas, 19-Jan
  145. Least Sandpiper – Calidris minutilla Ciudad Neily area, 3-Feb
  146. Semipalmated Sandpiper – Calidris pusilla; Ciudad Neily area, 3-Feb
  147. Western Sandpiper – Calidris mauri; Punta Morales, 23-March 
  148. Baird’s Sandpiper – Calidris bairdii; Juan Santamaria Airport area, 1-Oct
  149. Pectoral Sandpiper – Calidris melanotos; Ciudad Neily area, 3-Feb
  150. Buff-breasted Sandpiper – Calidris subruficollis; Juan Santamaria Airport area, 2-Oct
  151. Ruff – Philomachus pugnax; Ciudad Neily area, 3-Feb
  152. Stilt Sandpiper – Calidris himantopus; Punta Morales, 8-May
  153. Surfbird – Calidris virgata; Punta Morales, 28-August
  154. Wandering Tattler – Tringa incana; Malpais, 19-April 
  155. Wilsons’ Snipe – Gallinago delicata; Las Trancas, 11-December 
  156. Willet – Tringa semipalmata; Caldera, 19-Jan
  157. Greater Yellowlegs – Tringa melanoleuca; Guacalillo, 30-Jan
  158. Lesser Yellowlegs – Tringa flavipes; Ciudad Neily area, 3-Feb
  159. Solitary Sandpiper – Bartramia longicauda, Airport, 3-Sep
  160. Whimbrel – Numenius phaeopus; Caldera, 19-Jan
  161. Long-billed Curlew – Numenius americanus; Punta Morales, 23-March 
  162. Marbled Godwit – Limosa fedoa; Punta Morales, 23-March 
  163. Short-billed Dowitcher – Limnodromus griseus; Ciudad Neily area, 3-Feb
  164. Long-billed Dowitcher – Limnodromus scolopaceus; Ciudad Neily area, 3-Feb
  165. Spotted Sandpiper – Actitis macularius; Dominical, 1-Feb
  166. Red-necked Phalarope – Phalaropus lobatus; Malpais pelagic, 20-April
  167. Pomarine Jaeger – Stercorarius pomarinus; Tortuguero National Park area, 15-April
  168. Parasitic Jaeger – Stercorarius parasiticus; Puntarenas, 19-Jan
  169. Long-tailed Jaeger – Stercorarius longicaudus; Malpais pelagic, 20-April
  170. Sabine’s Gull – Xema sabini; Malpais pelagic, 20-April 
  171. Laughing Gull – Leucophaeus atricilla; Caldera, 19-Jan
  172. Franklin’s Gull – Leucophaeus pipixcan; Caldera, 19-Jan
  173. Western Gull – Larus occidentalis; Puntarenas, 3-Nov
  174. Caspian Tern – Hydroprogne caspia; Chomes, 23-Dec
  175. Royal Tern – Thalasseus maximus; Puntarenas, 19-Jan
  176. Elegant Tern – Thalasseus elegans; Puntarenas, 2-Nov
  177. Sandwich Tern – Thalasseus sanvicensis; Puntarenas, 19-Jan
  178. Black Tern – Chlidonias niger; Guacalillo, 30-Jan
  179. Brown Noddy – Anous stolidus; Malpais pelagic, 20-April
  180. WHITE TERN – GYGIS ALBA; Malpais pelagic, 20-April 
  181. Sooty Tern – Onychoprion fuscatus; Malpais pelagic, 20-April
  182. Bridled Tern – Onychoprion anaethetus; Malpais pelagic, 20-April 
  183. Forster’s Tern – Sterna forsteri; Chomes, 23-Dec
  184. Common Tern – Sterna hirundo; Malpais pelagic, 20-April 
  185. Arctic Tern – Sterna paradisaea; Malpais pelagic, 20-Apri
  186. Black Skimmer – Rhynchops niger; Punta Morales, 8-May
  187. Sunbittern – Europyga helias; Rinconcito, 3-March 
  188. Wedge-rumped Storm-Petrel – Oceanodroma tethys; Malpais pelagic, 20-April 
  189. Black Storm-Petrel – Oceanodroma melania; Malpais pelagic, 20-April 
  190. Least Storm-Petrel – Oceanodroma microsoma; Malpais pelagic, 20-April 
  191. Wedge-tailed Shearwater – Ardenna pacifica; Malpais pelagic, 20-April
  192. Pink-footed Shearwater – Ardenna creatopus; Malpais pelagic, 20-April
  193. Galapagos Shearwater – Puffinus subalaris ; Malpais pelagic, 20-April 
  194. Magnificent Frigatebird – Fregata magnificens; Puntarenas, 19-Jan
  195. Brown Pelican – Pelicanus occidentalis; Puntarenas, 19-Jan
  196. Neotropic Cormorant – Phalacrocorax brasilianus; Tirimbina, 9-Jan
  197. Masked Booby – Sula dactylatra ; Malpais pelagic, 20-April 
  198. Brown Booby – Sula leucogaster; Guacalillo, 30-Jan
  199. Red-footed Booby – Sula sula ; Malpais pelagic, 20-April
  200. Wood Stork – Mycteria americana; Guacalillo, 30-Jan
  201. Jabiru – Jabiru mycteria; Jaco, 6-August
  202. Anhinga – Anhinga anhinga; Ciudad Neily area, 3-Feb 
  203. Rufescent Tiger-Heron – Tigrisoma lineatum; Sarapiqui, 6-Dec
  204. Bare-throated Tiger-Heron – Tigrisoma mexicanum; Ciudad Neily area, 3-Feb
  205. Fasciated Tiger-Heron – Tigrisoma fasciatum; Aguas Zarcas, 3-April
  206. Great Egret – Ardea alba; Guacalillo, 30-Jan
  207. Great Blue Heron – Ardea herodias; San Joaquin de Heredia, 1-Jan
  208. Little Blue Heron – Egretta caerulea; Tirimbina, 9-Jan
  209. Snowy Egret – Egretta thula; Tirimbina, 9-Jan
  210. Tricolored Heron – Egretta tricolor; Guacalillo, 30-Jan
  211. Reddish Egret – Egretta rufescens; Tarcoles, 1-Feb
  212. Cattle Egret – Bubulcus ibis; San Joaquin de Heredia, 1-Jan
  213. Least Bittern – Ixobrychus exilis; near Jaco, 4-April
  214. Green Heron – Butorides virescens; Ciudad Neily area, 3-Feb
  215. Agami Heron – Agamia agami; Centro Manu, 22-Oct
  216. Black-crowned Night-Heron – Nycticorax nycticorax; Cano Negro, 4-Dec
  217. Yellow-crowned Night-Heron – Nictanassa violacea; Embalse Turrucares, 16-Jan
  218. Boat-billed Heron – Cochlearius cochlearius; Embalse Turrucares, 16-Jan
  219. White Ibis – Endocimus albus; Ciudad Neily area, 3-Feb
  220. Green Ibis – Mesembrinibis cayannensis; Tortuguero National Park area, 14-April
  221. Glossy Ibis – Plegadis falcinellus; Ciudad Neily area, 3-Feb
  222. Roseate Spoonbill – Platea ajaja; Ciudad Neily area, 3-Feb
  223. Black Vulture – Coragyps atrata; San Joaquin de Heredia, 1-Jan
  224. Turkey Vulture – Cathartes aura; San Joaquin de Heredia, 1-Jan
  225. Lesser Yellow-headed Vulture – Cathartes burrovianus; Ciudad Neily area, 3-Feb
  226. King Vulture – Sarcoramphus papa; Ciudad Neily area, 3-Feb
  227. Osprey – Pandeon haeliatus; Ciudad Neily area, 3-Feb
  228. Pearl Kite – Gampsonyx swainsonii; Ceiba de Orotina, 19-Jan
  229. White-tailed Kite – Elanus leucurus; San Joaquin de Heredia, 1-Jan
  230. Gray-headed Kite – Leptodon cayanensis; Tortuguero National Park area, 7-April
  231. Double-toothed Kite – Harpagus bidentatus; Ciudad Neily area, 3-Feb
  232. Swallow-tailed Kite – Elanoides forficatus; Providencia area, 18-Feb
  233. Hook-billed Kite – Chondrohierax uncinatus; Sarapiqui, 6-Dec
  234. Black Hawk-Eagle – Spizaetus tyrannus; Tirimbina, 9-Jan
  235. Ornate Hawk-Eagle – Spizaetus ornatus; Valle Quetzales, 2-March
  236. Bicolored Hawk – Accipiter bicolor; Pocosol Research Station, 26-July
  237. Cooper’s Hawk – Accipiter cooperii; San Joaquin de Heredia, 14-Feb
  238. Tiny Hawk – Accipiter superciliosus; Rincon de Osa, 29-Dec
  239. Mississippi Kite – Ictinia mississippiensis; Tortuguero National Park area, 14-April
  240. Plumbeous Kite – Ictinia plumbea; Carara area, 13-Feb
  241. Snail Kite – Rhostrhamus sociabilis; Las Trancas, 11-December 
  242. Crane Hawk – Geranospiza caerulescens; Guanacaste, 26-Feb
  243. White Hawk – Pseudastur albicollis; Cinchona, 9-Jan
  244. Savanna Hawk – Buteogallus meridionalis; Ciudad Neily, 28-Dec
  245. Common Black Hawk – Buteogallus anthracinus; Guacalillo, 30-Jan
  246. Barred Hawk – Morphnarchus princeps; Rio Negro area northern flank Rincon de la Vieja, 24-March
  247. Harris’s Hawk – Parabuteo unicinctus; Ceiba de Orotina, 19-Jan
  248. Semiplumbeous Hawk – Leucopternis semiplumbeous; Manuel Brenes Road, 12-Sep 
  249. Roadside Hawk – Rupornis magnirostris; Ciudad Neily area, 3-Feb
  250. Gray-lined Hawk – Buteo nitidus; Ciudad Neily area, 3-Feb
  251. Gray Hawk – Buteo plagiatus; San Joaquin de Heredia, 1-Jan
  252. Broad-winged Hawk – Buteo platypterus; Poas area, 23-Jan
  253. Short-tailed Hawk – Buteo brachyurus; Puntarenas, 19-Jan
  254. Swainson’s Hawk – Buteo swainsoni; Ciudad Neily area, 3-Feb
  255. White-tailed Hawk – Geranoaetus albicaudatus; near Liberia, 23-March 
  256. Zone-tailed Hawk – Buteo albonotatus; Guacalillo, 30-Jan
  257. Red-tailed Hawk – Buteo jamaicensis; Poas area, 23-Jan
  258. Pacific Screech-Owl – Megascops cooperi; Malpais, 19-April 
  259. Middle American Screech-Owl – Megascops guatemalae; Malpais, 19-April 
  260. Bare-shanked Screech-Owl – Megascops clarkii; Poas area, 27-Jan
  261. Crested Owl – Lophostrix cristata; Pocosol Research Station, 27-July
  262. Costa Rican Pygmy-Owl – Glaucidium costaricanum; Nochebuena Restaurant trails, 25-June
  263. Ferruginous Pygmy-Owl – Glaucidium brasilianum; Ceiba de Orotina, 19-Jan
  264. Central American Pygmy-Owl – Glaucidium griseiceps; Rio Negro area northern flank Rincon de la Vieja, 24-March
  265. Black-and-white Owl – Ciccaba nigrolineata; Pocosol Research Station, 27-July 
  266. Mottled Owl – Ciccaba virgata; San Joaquin de Heredia, 17-Sep
  267. Spectacled Owl – Pulsatrix perspicillata; Ciudad Neily area, 3-Feb
  268. Striped Owl – Asio clamator; Cano Negro, 4-Dec
  269. Unspotted Saw-whet Owl – Aegolius ridgwayi; Irazu Volcano, 29-July
  270. Resplendent Quetzal – Pharomacrus mocinno; Poas area, 23-Jan
  271. Lattice-tailed Trogon – Trogon clathratus; Manuel Brenes Road, 25-July
  272. Slaty-tailed Trogon – Trogon massena; Tirimbina, 9-Jan
  273. Black-throated Trogon – Trogon rufus; Tirimbina, 9-Jan
  274. Gartered Trogon – Trogon caligatus; Tirimbina, 9-Jan
  275. Black-headed Trogon – Trogon melanocephalus; Ceiba de Orotina, 19-Jan
  276. Elegant Trogon – Trogon elegans; Malpais, 19-April
  277. Collared Trogon – Trogon collaris; Providencia area, 18-Feb
  278. Tody Motmot – Hylomanes momotula; Rincon de la Vieja, 27-Feb
  279. Rufous Motmot – Baryphthengus martii; Sarapiqui, 16-May
  280. Keel-billed Motmot – Electron carinatum; Sarapiqui, 6-Dec
  281. Broad-billed Motmot – Electron platyrhynchum; Tirimbina, 9-Jan
  282. Lesson’s Motmot – Momotus lessonnii; Alajuela, 23-Jan
  283. Turquoise-browed Motmot – Eumomota superciliosa; Ceiba de Orotina, 19-Jan
  284. Ringed Kingfisher – Megaceryle torquata; San Joaquin de Heredia, 1-Jan
  285. Belted Kingfisher – Megaceryle alcyon; Tortuguero National Park area, 7-April
  286. Amazon Kingfisher – Chloroceryle amazona; Tirimbina, 9-Jan
  287. Green Kingfisher – Chloroceryle americana; Tortuguero National Park area, 7-April
  288. Green-and-Rufous Kingfisher – Chloroceryle inda; Manzanillo, 9-Oct
  289. American Pygmy-Kingfisher – Chloroceryle aenea; Manzanillo, 9-Oct
  290. White-necked Puffbird – Notharchus hyperrhynchus; Tortuguero National Park area, 6-April
  291. Pied Puffbird – Notharchustectus; Tortuguero National Park area, 6-April
  292. White-whiskered Puffbird – Malacoptila panamensis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  293. White-fronted Nunbird – Monasa morphoeus; Tirimbina, 9-Jan
  294. Rufous-tailed Jacamar – Galbula ruficauda; La Selva, 9-Jan
  295. Prong-billed Barbet – Semnornis frantzii; Poas area, 27-Jan
  296. Red-headed Barbet – Eubucco bourcierii; Quebrada Gonzalez, 3-August
  297. Keel-billed Toucan – Ramphastos sulfuratus; Tirimbina, 9-Jan
  298. Yellow-throated Toucan – Ramphastos ambiguus; Tirimbina, 9-Jan
  299. Collared Aracari – Pteroglossus torquatus; Tirimbina, 9-Jan
  300. Fiery-billed Aracari – Pteroglossosus frantzii; Carara area, 13-Feb
  301. Northern Emerald Toucanet – Aulacorhynchus prasinus; Alto Palomo, 6-Feb
  302. Olivaceous Piculet – Picumnus olivaceus; La Gamba, 30-Dec
  303. Acorn Woodpecker – Melanerpes formicivorus; Poas area, 27-Jan
  304. Hoffmann’s Woodpecker – Melanerpes hoffmannii; San Joaquin de Heredia, 1-Jan
  305. Red-crowned Woodpecker – Melanerpes rubricapillus; Ciudad Neily area, 3-Feb
  306. Black-cheeked Woodpecker – Melanerpes pucherani; Tirimbina, 9-Jan
  307. Golden-naped Woodpecker – Melanerpes chrysauchen; Mirador de Osa, 28-Dec
  308. Golden-olive Woodpecker – Colaptes rubiginosus; Providencia area, 18-Feb
  309. Hairy Woodpecker – Dryobates villosus; Varablanca, 9-Jan
  310. Smoky-brown Woodpecker – Dryobates fumigatus; Rio Negro area northern flank Rincon de la Vieja, 24-March
  311. Red-rumped Woodpecker – Dryobates kirkii; Ciudad Neily, 28-Dec 
  312. Rufous-winged Woodpecker – Piculus simplex; Tirimbina, 9-Jan
  313. Cinnamon Woodpecker – Celeus loricatus; Rio Negro area northern flank Rincon de la Vieja, 24-March
  314. Chestnut-colored Woodpecker – Celeus castaneus; Tortuguero National Park area, 7-April 
  315. Lineated Woodpecker – Dryocopus lineatus; San Joaquin de Heredia, 1-Jan
  316. Pale-billed Woodpecker – Campephilus guatemalensis; Carara area, 13-Feb
  317. Laughing Falcon – Herpetotheres cachinnans; Tirimbina, 9-Jan
  318. Crested Caracara – Caracara cheriway; San Joaquin de Heredia, 1-Jan
  319. Yellow-headed Caracara – Milvago chimachima; San Joaquin de Heredia, 1-Jan
  320. Barred Forest-Falcon – Micrastur ruficollis; Providencia area, 18-Feb
  321. Collared Forest-Falcon – Micrastur semitorquatus; Tarcoles, 3-Feb
  322. Bat Falcon – Falco rufigularis; Tirimbina, 9-Jan
  323. American Kestrel – Falco sparverius; Ceiba de Orotina, 19-Jan
  324. Merlin – Falco columbarius; Poas area, 27-Jan
  325. Peregrine Falcon – Falco peregrinus; San Joaquin de Heredia, 15-Jan
  326. Sulphur-winged Parakeet – Pyrrhura hoffmanni; Providencia area, 18-Feb
  327. Olive-throated Parakeet – Eupsittula nana; Tirimbina, 9-Jan
  328. Orange-fronted Parakeet – Eupsittula canicularis; Ceiba de Orotina, 19-Jan
  329. Brown-throated Parakeet – Eupsittula pertinax; Ciudad Neily area, 3-Feb
  330. Scarlet Macaw – Ara macao; Tirimbina, 9-Jan
  331. Great Green Macaw – Ara ambiguus; Tirimbina, 9-Jan
  332. Crimson-fronted Parakeet – Psittacara finschi; San Joaquin de Heredia, 1-Jan
  333. Barred Parakeet – Bolborhynchus lineola; Providencia area, 18-Feb
  334. Orange-chinned Parakeet – Brotogeris jugularis; San Joaquin de Heredia, 1-Jan
  335. Brown-hooded Parrot – Pyrilia haematotis; Tirimbina, 9-Jan
  336. White-crowned Parrot – Pionus senilis; San Joaquin de Heredia, 1-Jan
  337. Blue-headed Parrot – Pionus menstruus; Ciudad Neily area, 3-Feb
  338. Red-fronted Parrotlet – Toiuit costaricensis; Pocosol Research Station, 26-July
  339. White-fronted Parrot – Amazona albifrons; San Joaquin de Heredia, 1-Jan
  340. Red-lored Parrot – Amazona autumnalis; Tirimbina, 9-Jan
  341. Mealy Parrot – Amazona farinosa; Ciudad Neily area, 3-Feb
  342. Yellow-naped Parrot – Amazona auropalliata; Guacalillo, 30-Jan
  343. Russet Antshrike – Thamnistes anabatinus; Quebrada Gonzalez, 15-March
  344. Fasciated Antshrike – Cymbilaimus lineatus; Tirimbina, 9-Jan
  345. Great Antshrike – Taraba major; Ciudad Neily area, 3-Feb
  346. Black-crowned Antshrike – Thamnophilus atrinucha; Tirimbina, 9-Jan
  347. Black-hooded Antshrike – Thamnophilus bridgesi; Carara area, 13-Feb
  348. Barred Antshrike – Thamnophilus doliatus; San Joaquin de Heredia, 1-Jan
  349. Plain Antvireo – Dysithamnus mentalis; Pocosol Research Station, 26-July
  350. Streak-crowned Antvireo – Dysithamnus striaticeps; Tirimbina, 9-Jan
  351. Dot-winged Antwren – Microrhopias quixensis; Centro Manu, 21-Nov
  352. White-flanked Antwren – Myrmotherula axillaris; Tirimbina, 9-Jan
  353. Slaty Antwren – Myrmotherula schisticolor; Mi Cafecito, 16-May
  354. Checker-throated Antwren – Epinecrophylla fulviventris; Tirimbina, 9-Jan
  355. Dull-mantled Antbird – Myrmeciza laemosticta; Quebrada Gonzalez, 15-March
  356. Chestnut-backed Antbird – Myrmeciza exsul; Tirimbina, 9-Jan
  357. Zeledon’s Antbird – Myrmeciza zeledoni; Socorro, 16-May
  358. Bare-crowned Antbird – Gymnocichla nudiceps; Cano Negro, 4-Dec
  359. Spotted Antbird – Hylophylax naevioides; Tirimbina, 9-Jan
  360. Bicolored Antbird – Gymnopythis bicolor; Quebrada Gonzalez, 15-March
  361. Ocellated Antbird – Phaenostictus mcleannani; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  362. Dusky Antbird – Cercomacroides tyrannina; Tirimbina, 9-Jan
  363. Streak-chested Antpitta – Hylopezus perspicillatus; Quebrada Gonzalez, 3-August
  364. Thicket Antpitta – Hylopezus dives; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  365. Black-headed Antthrush – Formicarius nigricapillus; Pocosol Research Station, 26-July
  366. Black-faced Antthrush – Formicarius analis; Carara, 8-May
  367. Silvery-fronted Tapaculo – Scytalopus argentifrons; Varablanca, 9-Jan
  368. Tawny-throated Leaftosser – Sclerurus mexicanus; above La Paz Waterfall Gardens, 20-June
  369. Scaly-throated Leaftosser – Sclererus guatimalensis; Pocosol Research Station, 27-July
  370. Plain Xenops – Xenops minutus; Tirimbina, 9-Jan
  371. Spotted Barbtail – Premnoplex brunnescens; Poas area, 23-Jan
  372. Wedge-billed Woodcreeper – Glyphorynchus spirurus; Tirimbina, 9-Jan
  373. Olivaceous Woodcreeper – Sittasomus griseicapillus; Poas area, 27-Jan
  374. Northern Barred-Woodcreeper – Dendrocolaptes sanctithomae; Tirimbina, 9-Jan
  375. Ruddy Woodcreeper – Dendrocincla homochroa; Rincon de la Vieja, 27-Feb
  376. Plain-brown Woodcreeper – Dendrocincla fuliginosa; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  377. Tawny-winged Woodcreeper – Dendrocimcla anabatina; Mirador de Osa, 30-Dec
  378. Black-striped Woodcreeper – Xiphorhynchus lachrymosus; Tortuguero National Park area, 7-April
  379. Cocoa Woodcreeper – Xiphorhynchus susurrans; Tirimbina, 9-Jan
  380. Ivory-billed Woodcreeper– Xiphorhynchus flavigaster; Rincon de la Vieja, 27-Feb
  381. Spotted Woodcreeper – Xiphorhynchus erthropygius; Valle Quetzales, 2-March
  382. Streak-headed Woodcreeper – Lepidocolaptes souleyetii; Tirimbina, 9-Jan
  383. Spot-crowned Woodcreeper – Lepidocolaptes affinis; Poas area, 27-Jan
  384. Buffy Tuftedcheek – Pseudocolaptes lawrencii; Poas area, 27-Jan
  385. Streak-breasted Treehunter – Thripadectes rufobrunneus; Poas area, 27-Jan
  386. Buff-throated Foliage-gleaner – Automolus ochrolaemus; Sarapiqui, 16-May
  387. Chiriqui Foliage-gleaner – Automolus exsertus; Carara area, 13-Feb
  388. Striped Woodhaunter – Automolus subulatus; Quebrada Gonzalez, 15-March
  389. Lineated Foliage-gleaner – Syndactyla subalaris; Providencia area, 18-Feb
  390. Ruddy Treerunner – Margarornis rubiginosus; Poas area, 27-Jan
  391. Red-faced Spinetail – Cranioleuca erythrops; Poas area, 27-Jan
  392. Pale-breasted Spinetail – Synallaxis albescens; Ciudad Neily area, 3-Feb
  393. Slaty Spinetail – Synallaxis brachyura; Tortuguero National Park area, 14-April
  394. Long-tailed Manakin – Chiroxiphia linearis; Ceiba de Orotina, 19-Jan
  395. White-ruffed Manakin – Corapipo altera; Pocosol Research Station, 25-July
  396. White-collared Manakin – Manacus candei; Tirimbina, 9-Jan
  397. Orange-collared Manakin– Manacus aurantiachus; Ciudad Neily, 28-Dec
  398. White-crowned Manakin – Dixiphia pipra; El Copal, 30-July
  399. Blue-crowned Manakin – Lepidothrix coronata; Carara National Park, 23-Oct
  400. Red-capped Manakin – Ceratopipra mentalis; Rio Negro area northern flank Rincon de la Vieja, 24-March
  401. Bare-necked Umbrellabird – Cephalopterus gabricollis; Centro Manu, 22-Oct
  402. Purple-throated Fruitcrow – Querula purpurata; Tortuguero National Park area, 7-April
  403. Turquoise Cotinga – Cotinga ridgwayi; Rincon de Osa, 29-Dec
  404. Yellow-billed Cotinga – Carpodectes antoniae; Rincon de Osa, 29-Dec
  405. Snowy Cotinga – Carpodectes nitidus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  406. Three-wattled Bellbird – Procnias tricarunculatus; Road to Manuel Brenes, 25-July
  407. Rufous Piha – Lipaugus unirufus; Centro Manu, 22-Oct
  408. Northern Schiffornis – Schiffornis veraepacis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  409. Black-crowned Tityra – Tityra inquisitor; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  410. Masked Tityra – Tityra semifasciata; San Joaquin de Heredia, 1-Jan
  411. Cinnamon Becard – Pachyramphus cinnamomeus; Pozo Azul, 28-March
  412. Barred Becard – Pachyramphus versicolor; Poas area, 27-Jan
  413. Rose-throated Becard – Pachyramphus aglaiae; Ceiba de Orotina, 19-Jan
  414. Black-and-white Becard – Pachyramphus albogriseus; San Rafael de Varablanca, 26-Dec
  415. White-winged Becard – Pachyramphus polychopterus; Ciudad Neily area, 3-Feb
  416. Royal Flycatcher – Onychorhynchus coronatus; Cano Negro, 4-Dec
  417. Sulphur-rumped Flycatcher – Myiobius sulphureigypus; Carara area, 13-Feb
  418. Ruddy-tailed Flycatcher – Terenotriccus erythrurus; Quebrada Gonzalez, 15-March
  419. Stub-tailed Spadebill – Platyrinchus cancrominus; Valle Quetzales, 2-March
  420. Olive-striped Flycatcher – Mionectes olivaceus; Cinchona, 6-Feb
  421. Ochre-bellied Flycatcher – Mionectes oleagineus; Tirimbina, 9-Jan
  422. Slaty-capped Flycatcher – Leptopogon superciliaris; Road to Manuel Brenes, 25-July
  423. Rufous-browed Tyrannulet – Phylloscartes superciliaris; Road to Manuel Brenes, 25-July
  424. Torrent Tyrannulet – Serpophaga cinerea; Pocosol Research Station, 25-July
  425. Rough-legged (White-fronted) Tyrannulet – Phyllomyias burmeisteri; Irazu Volcano, 30-July
  426. Northern Bentbill – Oncostoma cinereigulare; Carara area, 13-Feb
  427. Slate-headed Tody-Flycatcher – Poecilotriccus sylvia; Malpais, 19-April 
  428. Common Tody-Flycatcher –  Todirostrum cinereum; San Joaquin de Heredia, 1-Jan
  429. Black-headed Tody-Flycatcher – Todirostrum nigriceps; Union de Guapiles, 15-March
  430. Yellow-margined Flycatcher – Tolmomyias assimilis; Tirimbina, 9-Jan
  431. Yellow-olive Flycatcher – Tolmomyias sulphurescens; San Joaquin de Heredia, 1-Jan
  432. Eye-ringed Flatbill – Rhynchocyclus brevirostris; near Jaco, 4-April
  433. Scale-crested Pygmy-Tyrant – Lophotriccus pileatus; Cinchona, 6-Feb
  434. Black-capped Pygmy-Tyrant – Myiornis atricapillus; Tirimbina, 9-Jan
  435. Northern Beardless-Tyrannulet – Camptostoma imberbe; San Joaquin de Heredia, 1-Jan
  436. Southern Beardless-Tyrannulet – Camptostoma obsoletum; Carara area, 13-Feb
  437. Brown-capped Tyrannulet – Ornithion brunneicapillus; Tortuguero National Park area, 7-April
  438. Yellow-bellied Tyrannulet – Ornithion semiflavum; Cano Negro, 4-Dec
  439. Yellow-crowned Tyrannulet – Tyrannulus elatus; Carara area, 13-Feb
  440. Mistletoe Tyrannulet – Zimmerius parvus; Tirimbina, 9-Jan
  441. Yellow Tyrannulet – Capsiempis flaveola; Jaco area, 20-Jan
  442. Greenish Elaenia – Myiopagis viridicata; Ceiba de Orotina, 19-Jan
  443. Yellow-bellied Elaenia – Elaenia flavigaster; San Joaquin de Heredia, 1-Jan
  444. Lesser Elaenia – Elaenia chiriquensis; Bosque de Nino, 6-March
  445. Mountain Elaenia – Elaenia frantzii; Varablanca area, 9-Jan
  446. Bright-rumped Attila – Attila spadiceus; Tirimbina, 9-Jan
  447. Rufous Mourner – Rhytipterna holerythra; La Selva area, 9-Jan
  448. Dusky-capped Flycatcher – Myiarchus tuberculifer; Tirimbina, 9-Jan
  449. Great Crested Flycatcher – Myiarchus crinitus; San Joaquin de Heredia, 1-Jan
  450. Nutting’s Flycatcher – Myiarchus nuttingi; Carara area, 13-Feb
  451. Brown-crested Flyctcher – Myiarchus tyrannulus; Ceiba de Orotina, 19-Jan
  452. Panama Flycatcher – Myiarchus panamensis; Punta Morales, 23-March 
  453. Great Kiskadee – Pitangus sulphuratus; San Joaquin de Heredia, 1-Jan
  454. Boat-billed Flycatcher – Megarynchus pitangua; San Joaquin de Heredia, 1-Jan
  455. Gray-capped Flycatcher – Myiozetetes granadensis; Tirimbina, 9-Jan
  456. Social Flycatcher – Myiozetetes similis; San Joaquin de Heredia, 1-Jan
  457. Rusty-margined Flycatcher – Myiozetetes cayanensis; Ciudad Neily area, 3-Feb
  458. White-ringed Flycatcher – Conopius albovittatus; Tortuguero National Park area, 7-April
  459. Golden-bellied Flycatcher – Myiodynastes hemichrysus; Braulio Carillo, 15-March
  460. Streaked Flycatcher – Myiodynastes maculatus; Guacalillo, 30-Jan
  461. Sulphur-bellied Flycatcher – Myiodynastes luteiventris; Valle Quetzales, 2-March
  462. Piratic Flycatcher – Legatus leucophaius; Ciudad Neily area, 3-Feb
  463. Gray Kingbird – Tyrannus dominicensis; Manzanillo, 9-Oct
  464. Tropical Kingbird – Tyrannus melancholicus; San Joaquin de Heredia, 1-Jan
  465. Eastern Kingbird – Tyrannus tyrannus; Pozo Azul, 28-March
  466. Western Kingbird – Tyrannus verticalis; Ceiba de Orotina, 19-Jan
  467. Scissor-tailed Flycatcher – Tyrannus forficatus; Ciudad Neily area, 3-Feb
  468. Fork-tailed Flycatcher – Tyrannus savana; Ciudad Neily area, 3-Feb
  469. Tropical Pewee – Contopus cinereus; Tirimbina, 9-Jan
  470. Western Wood-Pewee – Contopus sordidulus; Barva, 21-April
  471. Eastern Wood-Pewee – Contopus virens; Barva, 21-April
  472. Dark Pewee – Contopus lugubris; Cinchona area, 9-Jan
  473. Ochraceous Pewee – Contopus ochraceus; Providencia area, 18-Feb
  474. Olive-sided Flycatcher – Contopus cooperi; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  475. Tufted Flycatcher – Mitrephanes phaeocercus; Poas area, 27-Jan
  476. Tawny-chested Flycatcher – Aphanotriccus capitalis; El Copal, 29-July
  477. Least Flycatcher – Empidonax minimus; San Joaquin de Heredia, 7-Oct
  478. Yellow-bellied Flycatcher – Empidonax flaviventris; Tirimbina, 9-Jan
  479. Willow Flycatcher – Empidonax traillii; Ciudad Neily area, 3-Feb
  480. Alder Flycatcher – Empidonax alnorum; San Joaquin de Heredia, 7-May
  481. White-throated Flycatcher – Empidonax albigularis; San Miguel Lagoon, 3-Dec
  482. Acadian Flycatcher – Empidonax virescens; San Joaquin de Heredia, 26-Sep
  483. Yellowish Flycatcher – Empidonax flavescens; Poas area, 23-Jan
  484. Black-capped Flycatcher – Empidonax atriceps; Poas area, 23-Jan
  485. Black Phoebe – Sayornis nigricans; Tirimbina, 9-Jan
  486. Northern Scrub Flycatcher – Sublegatis arenarum; Punta Morales, 2-March
  487. Long-tailed Tyrant – Colonia colonus; Sarapiqui, 28-July
  488. Green Shrike-Vireo – Vireolanius pulchellus; Quebrada Gonzalez, 15-March
  489. Rufous-browed Peppershrike – Cychlarhis gujanensis; Providencia area, 18-Feb
  490. Tawny-crowned Greenlet – Tunchiornis ochraceiceps; Rincon de la Vieja, 27-Feb
  491. Scrub Greenlet – Hylophilus flavipes; Ciudad Neily area, 3-Feb
  492. Lesser Greenlet – Pachysylvia decurtatus; Tirimbina, 9-Jan
  493. Yellow-throated Vireo – Vireo flavifrons; San Joaquin de Heredia, 4-Jan
  494. Yellow-winged Vireo – Vireo carmoli; Poas area, 23-Jan
  495. Philadelphia Vireo – Vireo philadelphicus; San Joaquin de Heredia, 4-Jan
  496. Mangrove Vireo – Vireo pallens; Punta Morales, 23-March 
  497. Yellow-green Vireo – Vireo flavoviridis; Rincon de la Vieja, 27-Feb
  498. Red-eyed Vireo – Vireo olivaceus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  499. Brown-capped Vireo – Vireo leucophrys; Poas area, 23-Jan
  500. Azure-hooded Jay – Cyanolyca cucullata; La Paz de San Ramon, 24-July
  501. Brown Jay – Psilorhinus morio; San Joaquin de Heredia, 1-Jan
  502. White-throated Magpie-Jay – Calocitta formosa; Guacalillo, 30-Jan
  503. Purple Martin – Progne subis; Tortuguero National Park area, 7-April
  504. Gray-breasted Martin – Progne chalybea; San Joaquin de Heredia, 1-Jan
  505. Blue-and-white Swallow – Pygochelidon cyanoleuca; San Joaquin de Heredia, 1-Jan
  506. Mangrove Swallow – Tachycineta albilinea; Carara area, 13-Feb
  507. Barn Swallow – Riparia riparia, Villa Flores, 14-Sep
  508. Northern Rough-winged Swallow – Stelgidopteryx serripennis; Tarcoles, 1-Feb
  509. Southern Rough-winged Swallow –  Stelgidopteryx ruficollis; Tirimbina, 9-Jan
  510. Violet-green Swallow – Tachycineta thalissina; Bosque de Nino, 6-March
  511. Cliff Swallow – Petrochelidon pyrrhonota; Playa Hermosa, 28-Feb
  512. Cave Swallow – Petrochelidon fulva; Ceiba de Orotina, 16-Oct 
  513. Barn Swallow – Hirundo rustica; Ceiba de Orotina, 19-Jan
  514. Grass Wren – Cistothorus platensis; Coris, 28-Dec
  515. House Wren – Troglodytes aedon; San Joaquin de Heredia, 1-Jan
  516. Ochraceous Wren – Troglodytes ochraceus; Poas area, 23-Jan
  517. Nightingale Wren – Microcerculus philomela; Rincon de la Vieja, 27-Feb
  518. Scaly-breasted Wren – Microcrculus marginatus; El Copal, 29-July
  519. Band-backed Wren – Campylorhynchus zonatus; Quebrada Gonzalez, 15-March
  520. Rufous-naped Wren – Campylorhynchus rufinucha; San Joaquin de Heredia, 1-Jan
  521. Stripe-breasted Wren – Thryophilus pleurostictus; Tirimbina, 9-Jan
  522. Canebrake Wren – Cantorchilus zeledoni; La Selva area, 9-Jan
  523. Cabanis’s Wren – Cantorchilus modestus; San Joaquin de Heredia, 1-Jan
  524. Isthmian Wren – Cantorchilus elutus; Ciudad Neily area, 3-Feb
  525. Riverside Wren – Cantorchilus semibadius; Ciudad Neily area, 3-Feb
  526. Bay Wren – Cantorchilus nigricapillus; Tirimbina, 9-Jan
  527. Black-bellied Wren – Pheugopedius fachiatoventris; Ciudad Neily, 28-Dec
  528. Black-throated Wren – Pheugopedius atrogularis; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  529. Rufous-breasted Wren – Pheugopedius rutilus; Carara area, 13-Feb
  530. Spot-breasted Wren – Pheugopedius maculipectus; Cano Negro, 4-Dec
  531. Banded Wren – Thryothorus pleurostictus; Ceiba de Orotina, 19-Jan
  532. Rufous-and-white Wren – Thryothorus rufalbus; Carara area, 13-Feb
  533. White-breasted Wood-Wren – Henicorhina leucosticta; Tirimbina, 9-Jan
  534. Gray-breasted Wood-Wren – Henicorhina leucophyrs; Varablanca area, 9-Jan
  535. Timberline Wren – Thryorchilus browni; Providencia area, 18-Feb
  536. Song Wren – Cyphorhinus phaeocephalus; Rio Negro area northern flank Rincon de la Vieja, 24-March
  537. Tawny-faced Gnatwren – Microbates cinereriventris; Road to Manuel Brenes, 25-July
  538. Long-billed Gnatwren – Ramphocaenus melanurus; La Selva area, 9-Jan
  539. White-lored Gnatcatcher – Polioptila albiloris; Guacalillo, 30-Jan
  540. Tropical Gnatcatcher – Polioptila plumbea; Tirimbina, 9-Jan
  541. American Dipper – Cinclus mexicanus; Providencia area, 18-Feb
  542. Black-faced Solitaire – Myadestes melanops; Poas area, 23-Jan
  543. Slaty-backed Nightingale-Thrush – Catharus fuscater; Providencia area, 18-Feb
  544. Black-billed Nightingale-Thrush – Catharus gracilirostris; Poas area, 23-Jan
  545. Ruddy-capped Nightingale-Thrush – Catharus frantzii; Poas area, 23-Jan
  546. Orange-billed Nightingale-Thrush – Catharus aurantiirostris; Poas area, 23-Jan
  547. Black-headed Nightingale-Thrush – Catharus mexicanus; near Cinchona, 6-Feb
  548. Swainson’s Thrush – Catharus ustulatus; Providencia area, 18-Feb
  549. Gray-cheeked Thrush – Catharus minimus; San Joaquin de Flores, 13-Oct
  550. Veery – Catharus fuscenscens; San Joaquin de Flores, 10-Oct
  551. Wood Thrush – Hylocichla mustelina; Cops Place, 22-Oct
  552. Sooty Thrush – Turdus nigriscens; Poas area, 23-Jan
  553. Mountain Thrush – Turdus plebejus; Poas area, 23-Jan
  554. White-throated Thrush – Turdus assimilis; Cinchona, 6-Feb
  555. Pale-vented Thrush – Turdus obsoletus; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  556. Clay-colored Thrush – Turdus grayi; San Joaquin de Heredia, 1-Jan
  557. Tropical Mockingbird – Mimus gilvus; San Joaquin de Heredia, 15-Jan
  558. Cedar Waxwing – Bombycilla cedrorum; Barva, 21-April
  559. Black-and-yellow Silky-Flycatcher – Phainoptila melanoxantha; Poas area, 23-Jan
  560. Long-tailed Silky-Flycatcher – Ptiliogonys caudatus ; Poas area, 23-Jan
  561. Tricolored Munia – Lonchura malacca; Las Trancas, 10-December 
  562. House Sparrow – Passer domesticus; San Joaquin de Heredia, 1-Jan
  563. Golden-browed Chlorophonia – Chlorophonia callophrys; Poas area, 27-Jan
  564. Elegant Euphonia – Euphonia elegantissima; Providencia area, 18-Feb
  565. Scrub Euphonia – Euphonia affinis; La Garita, 16-Jan
  566. Yellow-crowned Euphonia – Euphonia luteicapilla; Tirimbina, 9-Jan
  567. Tawny-capped Euphonia – Euphonia anneae; Quebrada Gonzalez, 15-March
  568. Olive-backed Euphonia – Euphonia gouldi; Tirimbina, 9-Jan
  569. Spot-crowned Euphonia – Euphonia ; Rincon de Osa, 29-Dec
  570. Yellow-throated Euphonia – Euphonia hirundinacea; San Joaquin de Heredia, 4-Jan
  571. Thick-billed Euphonia – Euphonia laniirostris; Ciudad Neily area, 3-Feb
  572. White-vented Euphonia – Euphonia minuta; El Copal, 29-July
  573. Yellow-bellied Siskin – Spinus xanthogastrus; Poas area, 27-Jan
  574. Lesser Goldfinch – Spinus psaltria; San Joaquin de Heredia, 17-Jan
  575. Yellow-thighed Brushfinch – Atlapetes tibialis; Poas area, 23-Jan
  576. White-naped Brushfinch – Atlapetes albinucha; Poas area, 16-August
  577. Large-footed Finch – Pezopetes capitalis ; Poas area, 23-Jan
  578. Chestnut-capped Brushfinch – Arremons brunneinucha; Poas area, 23-Jan
  579. Volcano Junco – Junco vulcani; Irazu, 25-June
  580. Common Chlorospingus – Chlorospingus flavopectus; Cinchona area, 9-Jan
  581. Sooty-capped Chlorospingus – Chloropsingus pileatus; Poas area, 23-Jan
  582. Ashy-throated Chlorospingus – Chlorospingus canigularis; Quebrada Gonzalez, 15-March
  583. Cabanis’s Ground-Sparrow – Melozone cabanisi; San Joaquin de Heredia, 1-April
  584. White-eared Ground-Sparrow – Melozone leucotis; San Joaquin de Heredia, 1-Jan
  585. Black-striped Sparrow –  Arremonops conirostris; Tirimbina, 9-Jan
  586. Olive Sparrow – Arremonops rufivirgatus; El Rodeo, 1-April
  587. Orange-billed Sparrow – Arremon aurantiirostris; Tirimbina, 9-Jan
  588. Sooty-faced Finch – Arremon crassirostris; Braulio Carrillo, 5-March
  589. Stripe-headed Sparrow – Peucaea ruficauda; Ceiba de Orotina, 19-Jan
  590. Rufous-collared Sparrow – Zonotrichia capensis; San Joaquin de Heredia, 1-Jan
  591. Lark Sparrow – Chondestes grammacus; Bagaces, 10-December 
  592. Grasshopper Sparrow – Ammodramus savannarum; Ceiba de Orotina, 19-Jan
  593. Wrenthrush – Zeledonia coronata; Poas area, 27-Jan
  594. Yellow-breasted Chat – Icteria virens; Ciudad Neily, 28-Dec
  595. Yellow-billed Cacique – Ablycercus holosericeus; Providencia area, 18-Feb
  596. Scarlet-rumped Cacique – Cacicus uropygialis; Quebrada Gonzalez, 15-March
  597. Eastern Meadowlark – Sturnella magna; San Joaquin de Heredia, 4-Jan
  598. Red-breasted Meadowlark – Sturnella militaris; Ciudad Neily area, 3-Feb
  599. Chestnut-headed Oropendola – Psarcolius wagleri; Tirimbina, 9-Jan
  600. Crested Oropendola – Psarcolius decumanus; Ciudad Neily area, 3-Feb
  601. Montezuma Oropendola – Psarcolius Oropendola; Tirimbina, 9-Jan
  602. Yellow-tailed Oriole – Icterus mesomelas; Cano Negro, 4-Dec
  603. Streak-backed Oriole – Icterus pustulatus; Guacalillo, 30-Jan
  604. Black-cowled Oriole – Icterus prosthemelas; Tirimbina, 9-Jan
  605. Orchard Oriole – Icterus spurius; San Joaquin de Heredia, 15-Jan
  606. Baltimore Oriole – Icterus galbula; San Joaquin de Heredia, 1-Jan
  607. Red-winged Blackbird – Agelaius phoeniceus; Tirimbina, 9-Jan
  608. Shiny Cowbird – Molothrus bonariensis; Tirimbina, 9-Jan
  609. Bronzed Cowbird – Molothrus aeneus; Tirimbina, 9-Jan
  610. Giant Cowbird – Molothrus oryzivorus; San Joaquin de Heredia, 1-Jan
  611. Melodious Blackbird – Dives dives; San Joaquin de Heredia, 1-Jan
  612. Nicaraguan Grackle – Quiscalus nicaraguensis; Cano Negro, 4-Dec
  613. Great-tailed Grackle – Quiscalus mexicanus; San Joaquin de Heredia, 1-Jan
  614. Ovenbird – Seirus aurocapilla; Bosque de Nino, 6-March
  615. Louisiana Waterthrush – Parkesia motacilla; Poas area, 23-Jan
  616. Northern Waterthrush – Parkesia noveboracensis; Guacalillo, 30-Jan
  617. Blue-winged Warbler – Vermivora cyanoptera; Cano Negro, 4-Dec
  618. Golden-winged Warbler – Vermivora chrysoptera; Poas area, 27-Jan
  619. Worm-eating Warbler– Helmitheros vermivorum; Rincon de la Vieja, 28-Feb
  620. Black-and-white Warbler – Mniotilta varia; Tirimbina, 9-Jan
  621. Tennessee Warbler – Leiothlypis peregrina; San Joaquin de Heredia, 1-Jan
  622. Prothonotary Warbler – Protonotaria citrea; Guacalillo, 30-Jan
  623. Flame-throated Warbler – Oreothlypis gutturalis; Poas area, 23-Jan
  624. Gray-crowned Yellowthroat – Geothlypis poliocephala; La Selva area, 9-Jan
  625. Mourning Warbler – Geothlypis philadelphia; La Selva area, 9-Jan
  626. Kentucky Warbler – Geothlypis formosa; La Selva area, 9-Jan
  627. Olive-crowned Yellowthroat – Geothlypis semiflava; Tortuguero National Park area, 7-April
  628. Yellow Warbler – Setophaga petechia; San Joaquin de Heredia, 1-Jan
  629. Chestnut-sided Warbler – Setophaga pensylvanica; Tirimbina, 9-Jan
  630. Hooded Warbler – Setophaga citrina; Cano Negro, 4-Dec
  631. Blackpoll Warbler – Setophaga striata; Hotel Buena Vista, 21-April
  632. American Redstart – Setophaga ruticilla; San Joaquin de Heredia, 21-Feb
  633. Bay-breasted Warbler – Setophaga castanea; Quebrada Gonzalez, 15-March
  634. Cerulean Warbler – Setophaga cerulea; San Joaquin de Heredia, 17-Sep
  635. Tropical Parula –  Setophaga pitiayumi; Cinchona area, 9-Jan
  636. Townsend’s Warbler – Setophaga townsendi; Bosque de Nino, 6-March
  637. Black-throated Green Warbler – Setophaga virens; Poas area, 23-Jan
  638. Blackburnian Warbler – Setophaga fusca; Poas area, 27-Jan
  639. Slate-throated Redstart – Myioborus miniatus; Varablanca, 9-Jan
  640. Collared Redstart – Myioborus torquatus; Poas area, 23-Jan
  641. Buff-rumped Warbler – Myiothlypis fulvicauda; Tirimbina, 9-Jan
  642. Black-cheeked Warbler – Basileuterus melanogenys; Poas area, 27-Jan
  643. Rufous-capped Warbler – Basileuterus rufifrons; San Joaquin de Heredia, 1-Jan
  644. Golden-crowned Warbler – Basileuturus culicivorus; Rincon de la Vieja, 27-Feb
  645. Costa Rican Warbler – Basileuturus melanotisr; Poas area, 27-Jan
  646. Canada Warbler – Cardellina canadensis; San Joaquin de Heredia, 16-Sep
  647. Wilson’s Warbler – Cardellina pusilla; Poas area, 23-Jan
  648. Dusky-faced Tanager – Mitrospingus cassinii; Quebrada Gonzalez, 15-March
  649. Flame-colored Tanager – Piranga bidentata; Poas area, 27-Jan
  650. White-winged Tanager – Piranga leucoptera; Providencia area, 18-Feb
  651. Hepatic Tanager – Piranga flava; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  652. Western Tanager – Piranga ludovociana; Guacalillo, 30-Jan
  653. Scarlet Tanager – Piranga olivacea; Pozo Azul, 28-March
  654. Summer Tanager – Piranga rubra; San Joaquin de Heredia, 1-Jan
  655. Red-crowned Ant-Tanager – Habia rubica; San Joaquin de Heredia, 27-Jan
  656. Red-throated Ant-Tanager – Habia fuscicauda; Rio Negro area northern flank Rincon de la Vieja, 24-March 
  657. Carmiol’s Tanager – Chlorothraupi carmioli; Quebrada Gonzalez, 15-March
  658. Black-faced Grosbeak – Caryothraustes poliogaster; Quebrada Gonzalez, 15-March
  659. Rose-breasted Grosbeak – Pheucticus ludovicianus; San Joaquin de Heredia, 10-Jan
  660. Black-thighed Grosbeak – Pheucticus tibialis; Poas area, 23-Jan
  661. Blue-black Grosbeak – Cyanocompsa cyanoides; Tirimbina, 9-Jan
  662. Blue Grosbeak – Passerina caerulea; San Joaquin de Heredia, 10-Jan
  663. Indigo Bunting – Passerina cyanea; near Jaco, 4-April
  664. Painted Bunting – Passerina ciris; Raptor Ridge; San Joaquin de Heredia, 10-Jan
  665. Dickcissel – Spiza americana; Ceiba de Orotina, 19-Jan
  666. Blue-and-gold Tanager – Bangsia arcaei; Quebrada Gonzalez, 15-March
  667. Speckled Tanager – Tanagara guttata; Road to Manuel Brenes, 25-July
  668. Golden-hooded Tanager –  Stilpnia larvata; Tirimbina, 9-Jan
  669. Emerald Tanager – Tangara florida; Quebrada Gonzalez, 15-March
  670. Bay-headed Tanager – Tangara gyrola; Providencia area, 18-Feb
  671. Spangle-cheeked Tanager – Tangara dowii; Poas area, 23-Jan
  672. Silver-throated Tanager – Tangara icterocephala; Poas area, 23-Jan
  673. Plain-colored Tanager – Tangara inornata; Tortuguero National Park area, 7-April
  674. Black-and-yellow Tanager – Chrysothlypis chrysomelas; Quebrada Gonzalez, 15-March
  675. Blue-gray Tanager – Thraupis episcopus; San Joaquin de Heredia, 1-Jan
  676. Palm Tanager – Thraupis palmarum; Tirimbina, 9-Jan
  677. White-lined Tanager – Tachyphonus rufus; Sarapiqui, 17-May
  678. Tawny-crested Tanager – Tachyphonus delattrii; Quebrada Gonzalez, 15-March
  679. White-shouldered Tanager – Tachyphonus luctuosus; Tirimbina, 9-Jan
  680. White-throated Shrike-Tanager – Lanio leucothorax; Quebrada Gonzalez, 15-March
  681. Scarlet-rumped Tanager – Ramphocelus passerinii; Tirimbina, 9-Jan
  682. Crimson-collared Tanager – Ramphocelus sanguinolentus; Tirimbina, 9-Jan
  683. Gray-headed Tanager – Eucometis penicillata; Rincon de la Vieja, 28-Feb
  684. Blue-black Grassquit – Volatinia jacarina; San Joaquin de Heredia, 10-Jan
  685. Slaty Flowerpiercer – Diglossa plumbea; Varablanca area, 9-Jan
  686. Green Honeycreeper – Chlorophanes spiza; Tirimbina, 9-Jan
  687. Shining Honeycreeper – Cyanerpes lucidus; Tirimbina, 9-Jan
  688. Red-legged Honeycreeper – Cyanerpes cyaneus; Ciudad Neily area, 3-Feb
  689. Blue Dacnis – Dacnis cayana; Tirimbina, 9-Jan
  690. Scarlet-thighed Dacnis – Dacnis venusta; Providencia area, 18-Feb
  691. Bananaquit – Coereba flaveola; Tirimbina, 9-Jan
  692. Peg-billed Finch – Ancathidops bairdi; Providencia area, 18-Feb
  693. Yellow-faced Grassquit – Tiaris olvaceus; San Joaquin de Heredia, 10-Jan
  694. Nicaraguan Seed-Finch – Sporophila nuttingi; La Selva area, 20-June
  695. Thick-billed Seed-Finch – Sporophila funerea; Ciudad Neily area, 3-Feb
  696. Variable Seedeater – Sporophila corvina; Tirimbina, 9-Jan
  697. Morelet’s Seedeater – Sporophila morelleti; La Selva area, 9-Jan
  698. Yellow-bellied Seedeater – Sporophila nigricollis; near San Joaquin de Heredia, 3-August
  699. Slate-colored Seedeater – Sporophila schistacea; near Jaco, 4-April
  700. Slate-colored Grosbeak – Saltator grossus; Sarapiqui, 28-July
  701. Black-headed Saltator – Saltator atriceps; Santa Barbara area, 15-Feb
  702. Buff-throated Saltator – Saltator maximus; Tirimbina, 9-Jan
  703. Grayish Saltator – Saltator coerulescens; San Joaquin de Heredia, 10-Jan
  704. Streaked Saltator – Saltator striatipectus; Ciudad Neily area, 3-Feb

Written by Patrick O'Donnell
Patrick O'Donnell became a birder at the age of 7 after seeing books about birds in the Niagara Falls, New York public library. Although watching thousands of gulls in the Niagara Gorge was sublime, more bird species (and warmer weather) eventually brought him to Mexico, Costa Rica, Ecuador, and other very birdy tropical places. A biologist by training, he has worked on bird-related projects in Colorado, Washington, Peru, and other locales, and has guided birders in Peru, Ecuador, and Costa Rica. These days, he lives in Costa Rica where he juggles guiding, freelance writing, developing bird apps for Costa Rica and Panama, posting on his Costa Rica birding blog, and discussing dinosaurs with his young daughter.