Life Cycle of a Bird
Environment for the Americas

Life Cycle of a Bird

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Although there are over 9,000 species of birds in the world, each develops from a single-celled egg, is incubated, hatches, and grows to adulthood. Some bird life cycles involve migration. The Life Cycle of a Bird focuses on the various stages and explains:* differences in the length of time birds incubate their eggs and care for their young * the development of a chicken embryo and how a chick hatches* dangers to nesting habitats, the effects of pollution, and how these affect the life cycle of birds.