Guide to North American Birds Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.

There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to …

Use our Bird Guide to identify birds, learn about the life history, listen to the sounds, and watch bird behavior on video--the most comprehensive guide to Nort

Birds are found worldwide and in all habitats. The largest is the nine-foot-tall ostrich. The smallest is the two-inch-long bee hummingbird. Everything about the anatomy of a bird reflects its...

Oct 13, 2025 · bird, (class Aves), any of the more than 10,400 living species unique in having feathers, the major characteristic that distinguishes them from all other animals.

3 days ago · eBird transforms your bird sightings into science and conservation. Plan trips, find birds, track your lists, explore range maps and bird migration—all free.

We believe birds are a gateway to caring for the natural world. Help us spark curiosity and foster learning, starting with the earliest ages, through the college years, and lasting a lifetime.

Discover them all with Birds of the World. A global alliance of nature organizations working to document the natural history of all bird species at an unprecedented scale. Species accounts …

May 3, 2025 · Learn more about some of the wonderful backyard birds we often take for granted. Here are 10 common birds of North America.

Thousands of species of birds live on the planet and can be found on every continent. The animals inhabit a wide range of terrains, as many birds migrate from one habitat to the next, as …