Bird migration & National Zoological Park (United States) - Unionpedia, the concept map

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Difference between Bird migration and National Zoological Park (United States)

Bird migration vs. National Zoological Park (United States)

Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. The National Zoological Park, commonly known as the National Zoo, is one of the oldest zoos in the United States.

Bird

Birds are a group of warm-blooded vertebrates constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Crane (bird)

Cranes are a type of large bird with long legs and necks in the biological family Gruidae of the order Gruiformes.

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Northern pintail

The pintail or northern pintail (Anas acuta) is a duck species with wide geographic distribution that breeds in the northern areas of Europe and across the Palearctic and North America.

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Smithsonian Migratory Bird Center

The Smithsonian Migratory Bird Center is a research program dedicated to fostering greater understanding, appreciation, and protection of bird migration.

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Wader

A flock of Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wading along shorelines and mudflats in order to forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans.

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Whooping crane

The whooping crane (Grus americana) is an endangered crane species, native to North America, named for its “whooping” calls.

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