Bird anatomy - Wikipedia
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How do animals that eat other animals, fur, feathers, bones and all, digest their prey? - Quora
Which bird excrete through their mouth? - Quora
How do birds fly and poop at the same time? - Quora
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How do animals avoid choking on the bones of their prey? - Quora
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When eating prey, how do animals deal with large amounts of fur on the meat? - Quora
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