Kempton, PA

Included as evidence in her landmark book Silent Spring, Rachel Carson cited data from Hawk Mountain migration counts that showed a decreasing trend in the number of young Bald Eagles. Pictured, Carson scans the sky from atop the Sanctuary.

( Courtesy of Hawk Mountain Archives )

Included as evidence in her landmark book Silent Spring, Rachel Carson cited data from Hawk Mountain migration counts that showed a decreasing trend in the number of young Bald Eagles. Pictured, Carson scans the sky from atop the Sanctuary.

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