National Geographic : 2014 Oct
ART: KARL MÅRTENS. MAPS: JEROME N. COOKSON, NGM STAFF. SOURCE: NATIONAL AUDUBON SOCIETY 2000 2050 2000 2050 THE BAIRD’S SPARROW seeks the tall grass that grows on the high prairie. The Audubon study projects that the climate on 96 percent of its summer range and 97 percent of its winter range will become inhospitable to the little brown bird by 2050. Those numbers reach 100 percent by 2080. THE BURROWING OWL is a familiar sight in the grasslands and deserts of the American West. Already endangered by the farming practice of destroying the prairie dog burrows where it nests, the owl may lose 68 percent of its breeding range and 60 percent of its winter range.