The Passenger Pigeon

Published in 1955 by the University of Oklahoma Press, this is the classic study of the extinction of the passenger pigeon. The passenger pigeon, once probably the most numerous bird on the planet, made its home in the billion or so acres of primary forest that once covered North America east of the Rocky Mountains. Their flocks, a mile wide and up to 300 miles long, were so dense that they darkened the sky for hours and days as the flock passed overhead. Population estimates from the 19th ...