Gambel's White-crowned Sparrow (IMAGE)

Columbia University

Gambel's White-crowned Sparrow

Caption

Gambel's white-crowned sparrows, like this one, prefer woody shrubs. As the Arctic continues to warm, shrubs on Alaska's North Slope are expected to overtake open grasslands. That could create conditions for sparrows to outcompete longspurs and other migratory birds.

Credit

John Wingfield

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