Sunday, October 24, 2010

Cormorant colony

DOUBLE-CRESTED CORMORANTS (PHALACROCORAX AURITIUS), APOSTLE ISLANDS NATIONAL LAKESHORE, WISCONSIN, JULY 30, 2010

Pentax K10D
SMC Pentax-DA 55-300 at 300mm
1/2000 sec. f9.5
ISO 400

Often called the "crow duck," the homely and ungainly double-crested cormorant is a diving waterbird once almost exterminated on the Great Lakes by DDT runoff. It has made a roaring comeback in the last couple of decades and now fishers complain that it harms the stock of edible fish on the lakes. Scientists, however, say it dines mostly on trash-fish minnows, not trout or other game fish. This colony shared a navigation islet with a few gulls in the middle of the Apostles off Bayfield, Wisconsin.

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