Category:Birds

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Birds are bipedal, warm-blooded, egg-laying vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones. This category contains taxa at the order or higher level in the class of Aves.

For individual species of birds, see the subcategories, particularly category:Birds by classification and category:Birds by country.

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Birds

Subcategories

This category has the following 27 subcategories, out of 27 total.

 

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