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Showing posts with label Pinyon Jay. Show all posts
Showing posts with label Pinyon Jay. Show all posts

Monday, May 10, 2010

Drought, Beetles, Jays, and Nutcrackers in the American West

From the Cornell Lab of Ornithology’s Project FeederWatch comes a fascinating tale about how Pinyon Jays and Clark’s Nutcrackers dispersed widely in the winter of 2002-2003 in response to a protracted drought that had prevailed in the southwestern U.S. since about 1999. The drought, in combination with infestations of native beetles that resulted in the widespread loss of Pinyon Pines, a valuable food source, caused the birds to wander in search of alternative foods.