A tundra swan on the Mississippi River in USA
© National Geographic Image Collection/Alam
Tundra swans take flight. Autumn’s swan song
Each fall thousands of tundra swans can be seen on the Mississippi River Valley in United States—a migration corridor for many species of waterfowl. Birders in Minnesota may spot the tundra swans as they make their way to favoured wintering grounds in coastal regions of the US. They travel in family groups of about a hundred, and if you can’t see them, you’re bound to hear them. Tundra swans are a noisy bunch—they have a high-pitched honking call and are especially vocal while foraging.
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