The Black-headed Gull, Larus ridibunus, is similar in many ways to Bonaparte’s Gull, Larus philadelphia...

The Eastern Mediterranean Sea is what oceanographers call ultraoligotrophic, meaning that it has low primary...

I’ve been to a lot of birding festivals—sometimes as a speaker, sometimes as a trip...

The official start of summer hasn’t yet arrived, but those of you struggling through record-setting...

When the American Ornithologists’ Union publishes its annual North American checklist update next month, many...

Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) are robin-sized blackbirds found in prairie and mountain meadow wetlands of...

If studying insects would lead you to suppose that God had an “an inordinate fondness...

It is not every day that one gets to explore Central Park with a friend,...