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The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. [1] Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading to breeding grounds, or travelling to overwintering sites.
An alternative definition is that a flyway is the entire range of a migratory bird, encompassing both its breeding and non-breeding grounds, and the resting and feeding locations it uses while migrating. [2] There are four major north–south flyways in North America and six covering Eurasia, Africa, and Australasia.
Waterfowl flyways in the United States. The Atlantic Flyway is in violet. The Atlantic Flyway is a major north-south flyway for migratory birds in North America. The route generally starts in Greenland, then follows the Atlantic coast of Canada, then south down the Atlantic Coast of the United States to the tropical areas of South America and the Caribbean. [1]
It's estimated that roughly 40% of waterfowl and shorebirds in North America use the Mississippi Flyway.
The Central Flyway Council is composed of representatives from agencies responsible for migratory bird management in 10 states, two Canadian provinces and the Northwest Territories. Member states and provinces in the council are: Montana , Wyoming , Colorado , New Mexico , Texas , Oklahoma , Kansas , Nebraska , South Dakota , North Dakota ...
Migration is the regular seasonal movement, often north and south, undertaken by many species of birds. Migration is marked by its annual seasonality and movement between breeding and non-breeding areas. [16] Nonmigratory bird movements include those made in response to environmental changes including in food availability, habitat, or weather.
The Mississippi Flyway is a bird migration route that generally follows the Mississippi, Missouri, and Lower Ohio Rivers in the United States across the western Great Lakes to the Mackenzie River and Hudson Bay in Canada. The main endpoints of the flyway include central Canada and the region surrounding the Gulf of Mexico. [1]
In 1966, the first parcel of the refuge was purchased with Federal Duck Stamp funds to provide a sanctuary for migratory waterfowl. Over the years the refuge has steadily grown in size and today it comprises six contiguous units: San Luis, East Bear Creek, West Bear Creek, Freitas, Blue Goose, and Kesterson.