Bird - Wikipedia
WEBBirds are a group of warm-blooded vertebrates constituting the class Aves (/ ˈeɪviːz /), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Guide to North American Birds | Audubon
WEBExplore more than 800 bird species in North America, with photos, sounds, and information on their habitats and conservation. Learn how climate change is affecting their survival and how to identify them by sight and sound.
Online bird guide, bird ID help, life history, bird sounds from …
WEBExplore the life, sounds, and behavior of birds from around the world with this comprehensive online resource. Find tips, projects, events, and quizzes to learn more about birds and help protect them.
Search, All About Birds, Cornell Lab of Ornithology
WEBFind and learn about 600+ North American bird species with photos, sounds, and life history info. Browse by family or shape, or use Merlin Bird ID app and online courses.
Bird Pictures & Facts - National Geographic
WEBLearn about the anatomy, evolution, and diversity of birds, the vertebrates adapted for flight. Explore stunning photos and videos of different bird species and their habitats.
Bird | Description, Species, Feathers, & Facts | Britannica
WEBAug 20, 2024 · Learn about bird, the class of warm-blooded vertebrates with feathers, wings, and a four-chambered heart. Explore the diversity, evolution, and cultural significance of birds, from ancient symbols to modern bird-watching.
eBird - Discover a new world of birding...
WEBeBird is a free online platform for birders to explore, report, and analyze bird data from around the world. Join the community, learn more about birds, and contribute to science and conservation.
Birds of the World - Cornell Lab of Ornithology
WEBBirds 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 comprehensive life history information on birds. Every bird has a story. Discover them all with Birds of the World. About Birds of the World; Team; Subscribe
Birds - National Geographic Kids
WEBLearn about birds, the only animals with feathers and warm-blooded vertebrates. Find out facts, see photos, and play games about different bird species.
All About Birds | Birds, Cornell Lab of Ornithology
WEBLearn about birds and bird watching with this free online guide from Cornell Lab of Ornithology. Find species information, tips, and inspirational videos for bird lovers of all levels.