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 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.
Bird | Description, Species, Classification, Types, & Facts
WEB3 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 more related to reptiles than mammals. Learn more about birds in this article.
Bird Pictures & Facts - National Geographic
WEBAnimals. Photo Ark. Horned screamer. Learn More. About Birds. Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the...
Search, All About Birds, Cornell Lab of Ornithology
WEBDetailed information for more than 600 North American bird species, including ID help, browse by shape and taxonomy, and deeper articles.
All About Birds | Birds, Cornell Lab of Ornithology
WEBAll 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 ...
Online bird guide, bird ID help, life history, bird sounds from …
WEBUse 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 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
WEBBirds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't fly.
Discover Birds | Audubon
WEBBlue, red, brown, green? How big is it compared to a pigeon? Bigger, smaller, about the same size? Where did you find it? In a tree, at the beach, in a lake, soaring overhead? Details like these and the above are clues that will help you solve your mystery bird. Use the Audubon app to help you identify the bird! You can download it here.
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