Great Plains Birds

This book summarizes the evidence from 47 years (1967–2014) of Audubon Christmas Bird Counts (CBC) and finds that bird pop-ulations have changed and winter ranges have shifted for many species in the Great Plains states (the Dakotas, Nebraska, Kansas, Oklahoma, and the Texas panhandle). The study builds upon Terry Root’s 1988 Atlas of North American Wintering Birds, which provided a baseline for evaluating winter distributions in the mid-20th cen-tury, using data from the National Audubon Society’s annual CBC surveys from 1962–63 through 1971–72. The present analysis in-cludes all of the 40 annual CBC surveys from the 1967–8 to the 2006–7 counts, plus the results of the most recent 2013–14 CBC, and it offers quantitative descriptions of the early winter abun-dance for 147 of the most commonly encountered regional spe-cies, illustrating their temporal changes in geographic distributions and relative abundance between 1967 and 2014. As recent win