The ongoing online debate about whether Old World or New World warblers are more wonderful isn’t just confined to 10,000 Birds. Round Robin, the Cornell Blog of Ornithology, covers some of the finer points of who’s got the best warblers and why.

Written by Mike
Mike is a leading authority in the field of standardized test preparation, but he's also a traveler who fully expects to see every bird in the world. Besides founding 10,000 Birds in 2003, Mike has also created a number of other entertaining but now extirpated nature blog resources, particularly the Nature Blog Network and I and the Bird.