They have dark grey plumage that appears black from afar, and they’re identified by their chicken-like white ... heavy birds, ...

Do you know why blue-footed boobies have blue feet? Author Laura Erickson does, and you’ll find the answers to this and many other great questions in her book, The Bird Watching Answer Book.

Prominent black crescent framing lower edge of auricular. On perched bird, wing patch shows only as a thin white line along the leading edge of the folded wing. Adult male: grayish or grayish ...

How a winter irruption of white-winged crossbills in the Adirondacks sparked a lifelong passion for birdwatching.