Birds come in all shapes and sizes but they all have certain traits in common.
Flightless birds include ostrich, emus, rhea, cassowary, kiwi, penguins, and others. They all nest on the ground. Flightless birds have developed other ways of defending themselves from predators.
Can you name one famous flightless bird that became extinct because predators invaded the islands where they lived?
There are many different groups (Orders) of birds. The different orders are separated by different traits. Here are some of the orders of birds.
Orders of Birds:
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Amsel, Sheri. "ABOUT BIRDS" Exploring Nature Educational Resource ©2005-2020. July 3, 2020
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