Extinct Animals in North America Modernization of the United
States led to the deforestation and clearing of forest cover.
This resulted in destruction of natural habitats of many animals
leading to some of them even becoming extinct. Here, we discuss
about some extinct animals in North America: Heath Hen: It was a
subspecies of the Prairie Chicken, and was once found in the
eastern United States. It was commonly seen across the region
from Maine to Virginia before the American Revolution. Excessive
hunting of this species of animal is the main reason for its
extinction. In 1907, fewer than 100 individual species of them
were alive. But, with concerted effort their number increased to
800 in 1916. Due to bushfire and harsh winter, their number
again declined. In 1921, a disease from domestic chickens
infected this species of animal, which left their numbers to be
reduced to 13. The last species died in 1932. Passenger Pigeon:
It was a common bird found in the central and eastern North
America. It is believed