EXTINCTION IS A FUNCTION OF DESIGN:

Albatross, thought extinct, lays egg (UPI, 12/18/10)

The U.S. Fish and Wildlife Service says a short-tailed albatross, once thought extinct, has laid its first-ever egg on Eastern Island in the Midway atoll. [...]

Short-tailed albatross were thought to have become extinct between the late 19th and early 20th centuries, due to overhunting for their feathers which were used in women's hats.