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Photo by: Tom Erdman

Location: Brown Co., WI

swans in flight.

Tundra Swans in Flight

Tundra Swans were once threatened by overharvest and were extirpated from large areas of their breeding range. However, reduced hunting pressure and adaptation to humans have allowed Tundra Swans numbers to increase dramatically. Historically, the large majority of Tundra Swans wintered in Chesapeake Bay and followed a fairly narrow spring and fall migration route on their way to and from the arctic tundra. They fed on submerged aquatic plants on large bodies of water such as Green Bay, Red Lake (MN), or the Delta Marsh in Canada. As some of these areas lost their large stands of submerged aquatics, the swans were forced to follow the cranes, geese, and ducks out into the fields. Now the migration pattern for Tundras has widened as the swans have adapted to flooded agricultural areas in the Spring.

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Last updated on April 15, 2014