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what are the characteristic of a bird2007-11-24 17:25:37Answers:

"Birds are:

-bipedal

-warm-blooded

-oviparous (they lay eggs)

-vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones"

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they all have beaks, wings, and can fly..oh yea they also lay eggs

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Birds are bipedal, warm-blooded, oviparous vertebrate animals characterized primarily by feathers, forelimbs modified as wings, and hollow bones.

http://en.wikipedia.org/wiki/bird.

Edit: CRAP.

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that it can fly!

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two legs, two wings, a beak, most fly some don't, feathers, lay eggs, don't pee just poop, live in a nest.

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birds do pee, btw, but it all comes from the same place.