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 species; the only known …

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.

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

Dec 17, 2025 · Birds have feathers, are warm-blooded vertebrates, and, like mammals, have a four-chambered heart. Bird characteristics also include forelimbs modified into wings, hard-shelled eggs, …

Comprehensive life histories for all bird species and families. Unlock species accounts, maps, multimedia, and bird family overviews. For public and academic libraries, government agencies, …

5 days ago · Here you can browse through and learn about 840 different birds from all around the world. From the Abdim's Stork of sub-Saharan Africa to the Zebra Finch of Australia, you'll discover a wide …

5 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. Our work …

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 the seasons …

Oct 25, 2025 · Explore how birds evolved, what they eat, and how they live. From flightless penguins to speedy falcons, discover the beauty of avian life.