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Birds are a group of warm-blooded vertebrates constituting the class Aves (/ ˈ eɪ v iː z /), 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.
Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive.
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.
The Canada jay has been proposed as the national bird of Canada. [1] This is a list of bird species confirmed in Canada. Unless otherwise noted, the list is that of Bird Checklists of the World as of July 2022. [2] Of the 703 species listed here, 235 are accidental.
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3 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.
Learn all about birds around the world through our growing collection of in-depth expert guides.
