The "great eagle"
No less an authority than Audubon described a giant species of North American eagle, similar in appearance to an immature bald eagle but with some anatomical differences as well as a difference in size. The now-lost type specimen, which Audubon shot himself after having seen this eagle four times in the wild, was a meter tall with a wingspan of 3.1m. As Karl Shuker recounts it, authorities contemporary with Audubon accepted the species, and some reported seeing it themselves. An occasional report of a giant eagle still surfaces. Is America's largest raptor extinct, or still, just possibly, hanging on?