The Field Museum’s rare copy of John J. Audubon’s “Birds of America” is now on public display, as part of an exhibit that doesn’t shy away from Audubon’s complicated legacy.

Delve into an epic 33-pound book by the artist and naturalist, John Audubon. Birds of America is getting its first complete reproduction by a Chicago gallery owner more than 150 years after its first printing. View a slideshow.