Tuesday, June 14, 2011

Eagles Take a Dent out of Salmon Eating Birds on the Columbia

Over the last several years populations of caspian terns and double crested cormorants have exploded on the Lower Columbia prompting concerns over the piscivorous birds' impact on outmigrating salmon. This year however in an unexpected turn of events increased predation by eagles, peregrine falcons and great horned owls have led to a near complete collapse of what were once thought to be the largest colonies of terns and cormorants in the world. More information in the Columbia Basin Bulletin:


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