Birds are a group of warm-blooded vertebrates constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four …

Detailed information for more than 600 North American bird species, including ID help, browse by shape and taxonomy, and deeper articles.

3 days ago · Bird, any of the more than 10,400 living species unique in having feathers, the major characteristic that distinguishes them from other animals. They are warm-blooded vertebrates …

All About Birds is your free online guide to birds and bird watching. Explore in-depth species information, tips from the Lab’s experts, and inspirational v ...

Birds of the World is a powerful resource that brings deep, scholarly content from four celebrated works of ornithology into a single platform where biologists and birders can find …

Have you ever seen a large, black bird fly by and wondered: Is that a crow or a raven? Do you have trouble telling the difference between a swallow and a swift?

Discover what birds are currently active in Sandy through real-time sightings from Bird Buddy users. Explore hotspots and track your favorite species with updates from our community …