Although most birds can fly, there are some birds that cannot fly, such as:
1. Ostrich: Ostrich is one of the largest birds in the world, with a height of about 2.5 meters, but they cannot fly. Ostrich has long legs and a thick body, and mainly runs on land.
2. Penguin: Penguins live in the cold Antarctic region. Although they have wings, they cannot fly. Penguins have well-developed wings that have evolved into wings for swimming.
3. Ostriches, emus, and chicks of several birds cannot fly either, and need to run to escape predators or find food.
4. Some birds can fly, but they are very poor at flying, such as pigeons, chickens, turkeys, wild ducks, etc. They mainly use short-distance flights to escape danger or find food.
These birds that cannot fly or have poor flying ability also have their own ways of adapting to the environment in nature, thereby protecting their own lives.
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