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Since many songbirds prefer to migrate by the stars, large flocks routinely show up on nighttime radar scans at JFK airport. Astronomical and physical signposts, such as the stars, the sun, and the earth’s magnetic field, also aid in the steering of migrating flocks towards their destinations.
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Topographical cues, such as coastlines, river courses, and mountain ranges, help to guide the journey. Migrating birds use a variety of methods to navigate the flyway. The Atlantic flyway is not limited to birds alone the route is also used by butterflies, as well as some species of bats and dragonflies. Millions of songbirds, seabirds, birds of prey, and waterfowl follow the Atlantic flyway every fall and spring. Stretching along North America’s eastern coast from Florida to Nova Scotia, the Atlantic flyway is one of the four main American flyways, along with the Mississippi (which follows the Mississippi River), Central, and Pacific (ranging from California to Alaska). Along the way, the city’s parks provide an ideal area for the migrating birds to rest and refuel.
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Every year, many birds migrate to avoid overpopulation in their breeding grounds and to find more abundant food supplies. Although this majestic bird no longer nests here, it can still be seen soaring through the skies of New York City, thanks to the city’s position along the Atlantic flyway. The bald eagle, a national symbol of strength and freedom, was formerly listed as an endangered species.