Monday, November 8, 2010

Bald Eagle 2

Dozens of Bald Eagles were almost as exciting as Tundra Swans during our Friday road-trip.  The Bald Eagle's recovery is one of our premier environmental management successes.  Their populations plummeted due to persecution (Alaska offered a bounty on Bald Eagles) and lowered reproduction from DDT contamination.  This species' rebound is such that by the late 1990s, Bald Eagles now breed across Canada and in all the contiguous states except Rhode Island and Vermont (Buehler 2000).
Bald Eagles are monogamous and thought to mate for life unless a mate dies. Pairs apparently stay together throughout the year. One problem with studying Bald Eagles, however, is that banding adults is difficult.

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