Great Basin Naturalist


Analysis of Audubon Society Christmas bird count data and certain environmental variables shows the degree to which the Black-billed Magpie is a bird of cool arid regions in North America. The abundance and distribution of this species appear to be limited by two major climatic barriers: increasing summer temperatures in the Southwest and increasing summer humidity and precipitation on the central plains.


Due to an unfortunate oversight, the featured illustration on page 270 of the above article was poorly reproduced and of inadequate size to convey the intended meaning. With our apologies to the authors, it is reproduced in the correction notice here: gbn/vol36/iss1/10/