A Century of avifaunal change in western North America proceedings of an International Symposium at the centennial meeting of the Cooper Ornithological Society, Sacramento, California, April 17, 1993 - Cooper Ornithological Society. International Symposium (1993 : Sacramento, Calif.).; Jehl, Joseph R.; Johnson, Ned K. (Camarillo, CA : Cooper Ornithological Society, 1994)
Includes bibliographical references.
Keywords: Bird populations -- North America -- Congresses; Birds -- North America -- Congresses