Eastern cougar declared extinct by US government - CSMonitor.com
Eastern Puma has officially been declared extinct. Such beautiful creatures now gone due to trappers. | Wild cats, Cats with big eyes, Most beautiful animals
The eastern puma is declared officially extinct | Daily Mail Online
Eastern Puma declared officially extinct
Petition condemns decision to shoot puma on loose in north France
American Cheetah Facts
Eastern puma declared extinct, 80 years after last confirmed sighting - The Wildlife Society
Pumas, Panthers & Cougars: Facts About America's Big Cats | Live Science