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  1. Aug 20, 2024 · 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.

  2. Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.

  3. en.wikipedia.org › wiki › BirdBird - Wikipedia

    Birds 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.

  4. About Birds. 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 their wings. Birds are found...

  5. 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.

  6. Detailed information for more than 600 North American bird species, including ID help, browse by shape and taxonomy, and deeper articles.

  7. How to Identify Birds. When faced with a bird in the field, a birder first takes note of its key distinguishing features, or "field marks"— overall size and shape, bill structure, plumage (the markings on head and body)—and its actions. Many birds can be identified by the colors and patterns of their plumage alone, but plumages can be ...

  8. www.audubon.orgbirding › discover-birdsDiscover Birds | Audubon

    Visit our free online bird guide. And to learn more about the incredible feat that is bird migration, follow the paths of more than 450 species with our Bird Migration Explorer.

  9. Jan 6, 2018 · On this page you’ll find out all about birds, including how they evolved and what makes a bird a bird. Random bird fact: the world’s most common wild bird is the red-billed quelea. This sparrow-sized bird is found in Sub-Saharan Africa, where it forms flocks of over a million individuals.

  10. Birds Need You Now. Generous people like you power our work to protect birds and the places they need. One time. Monthly. Donate. Audubon protects birds and the places they need, today and tomorrow.

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