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Loon, Common

In winter, adult common loons (Gavia immer) moult their flight feathers, during which time they become temporarily flightless. The diet of the common loon includes fish, insects, amphibians, and plant matter. It is thought that the red eyes of the common loon may help with their underwater vision. Common loons can dive up to 200 feet for up to 5 minutes at a time and unlike other birds have solid bones to reduce their buoyancy.

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