thumbnail Did they forget to fly south?
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Did they forget to fly south? © DEEPOL by plainpicture
Native to North America, trumpeter swans live near rivers, lakes, and coastal byways in northern and western US states in the lower 48, as well as in Canada and Alaska. Depending on where they live, these swans are either resident birds or medium-range migrators. What they all require, though, is year-round access to open water, since their diet consists almost entirely of aquatic plants. That may be why the swans in this image are drawn to the waters of Kelly Warm Springs in Wyoming, which won"t freeze even as snow lines the banks.