House FinchHaemorhous mexicanus
Adaptable, colorful, and cheery-voiced, House Finches are common from coast to coast today, familiar visitors to backyard feeders. Native to the Southwest, they are recent arrivals in the East. New York pet shop owners, who had been selling the finches illegally, released their birds in 1940 to escape prosecution; the finches survived, and began to colonize the New York suburbs. By 50 years later they had advanced halfway across the continent, meeting their western kin on the Great Plains.