Archaeopteryx is often considered the oldest known true bird. The first classification of birds was developed by Francis Willughby and John Ray in their 1676 volume Ornithologiae. [6] Carl Linnaeus …

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 North American birds

Learn the 37 different types of COMMON BIRDS in Kansas, AND how to identify them. How many of these bird species have YOU seen?

We believe in the power of birds to ignite discovery and inspire action. Join us on a lifelong journey to enjoy, understand, and protect birds and the natural world.

Nov 2, 2025 · Hear the sounds of 175 US bird species I filmed over the last 3 and a half years! In this video you can hear multiple songs and calls from North American birds, including their regional …

Mar 16, 2023 · 35 backyard birds in Kansas seen on your feeders with pictures for identification, what to feed them, and bird calls and songs

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

May 4, 2026 · Bird, any of the approximately 11,200 living species unique in having feathers, the major characteristic that distinguishes them from other animals. They are warm-blooded vertebrates more …

Discover what types of birds are found in the USA, with pictures and charts about native and introduced birds. What is the country's national bird, and more.