These birds have long and flat beak and webbed feet and they stay in water most of the time.

• a. perching birds
• b. water birds
• c. flightless birds
• d. birds of prey

Explanation:

A water bird, alternatively waterbird or aquatic bird, is a bird that lives on or around water. In some definitions, the term water bird is especially applied to birds in freshwater ecosystems, although others make no distinction from seabirds that inhabit marine environments.

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