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![]() edHelper.com Animal Themes Birds |
Birds |
| edHelper's suggested reading level: | grades 3 to 5 | |
| Flesch-Kincaid grade level: | 4.38 |
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| Birds |
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1 Birds are the only type of animals with feathers. Birds are warm-blooded, and most of them can fly. All birds have two wings even for the species that cannot fly, such as ostriches, kiwis, and penguins. Birds do not have teeth. Instead, they have beaks. Birds lay eggs. Most birds build nests for their eggs, and they sit on their eggs during incubation. Emperor penguins, however, do not. A mother emperor penguin lays only one egg. Her husband is in charge of incubation by holding the single egg on top of his feet under a fold of skin. There are more than 9000 different kinds of birds. Many people mistakenly think bats are birds. They are not! Bats are mammals. Eagles, puffins, and flamingos all belong to the family of birds.