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25 Cards in this Set

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  • Back
Having a body temperature that remains about the same
warm-blooded
Birds maintain their body temperature by using heat produced by the breakdown of ____.
food
Birds are ____________ animals.
warm-blooded
Birds are the only animals with _______.
feathers
Birds that eat ______ have strong, curved beaks for tearing.
meat
Birds that feed on ______ have short strong beaks.
seeds
All _______ birds have webbed feet for paddling through water.
swimming
Birds have ______ feathers to help keep in body heat.
down
The upper chambers of a bird's heart are the _______.
atria
The lower chambers of a bird's heart are the _______.
ventricles
Birds are classified into five groups based upon the shape of their _____ and _____.
beaks, feet
Birds have a stream-lined, ______ body.
cigar-shaped
What functions do feathers serve?
Feathers give the bird its shape, are important in flight, and help to keep in body heat
Name the features of a bird
They are the only animals with feathers, have two wings and two legs, have lightweight bones, a beak and lay eggs.
Birds have well-developed organ systems. Their _____ _____ works very well.
respiratory system
Birds' respiratory system has to supply the muscles with large amounts of _____.
oxygen
All birds are classified to the class _____.
Aves
Birds have a _____- chamberd heart.
four
Name the five groups of birds
1) swimming bird 2) birds of prey 3) wading bird 4) perching bird 5) non-perching land bird
All swimming birds have _____ feet.
webbed
Name a swimming bird
swimming
Name a bird of prey.
Hawk
Name a perching bird.
Cardinal
Name a nonperching land bird.
Woodpecker
Name a wading bird.
Heron