Birds are a group of warm-blooded vertebrates constituting the class Aves characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, ...
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Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained ...
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 ...
Click a shape below to see birds in the category. Auks; Blackbirds; Chickadees; Crows and Jays; Doves; Ducks; Finches; Flycatchers; Game Birds ...
Feathered pets like parrots can be fascinating additions to the family. Recent estimates say that over 5 million households in the United States have pet birds.
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Birds are warm-blooded vertebrates (vertebrates have backbones) and are the only animals with feathers. Although all birds have wings, a few species can't ...
Birds arose as warm-blooded, arboreal, flying creatures with forelimbs adapted for flight and hind limbs for perching. This basic plan has become so modified ...
Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.
North America is home to an incredibly diverse range of birds, from the majestic national icon—the bald eagle—to the remarkably resilient whooping crane.
Birds of the World is a powerful resource that brings deep, scholarly content from four celebrated works of ornithology into a single platform where biologists ...