143. Mandel, J. T., K. L. Bildstein, G. Bohrer, and D. W. Winkler. 2008. Movement ecology of migration in Turkey Vultures. PNAS 105(49): 19102-19107. | Hawk Mountain Sanctuary: Learn Visit Join

143. Mandel, J. T., K. L. Bildstein, G. Bohrer, and D. W. Winkler. 2008. Movement ecology of migration in Turkey Vultures. PNAS 105(49): 19102-19107.