“Audubon’s ‘Birds of America’ fetches $7.9M in NYC”

The 3 1/2-foot-tall books feature hand-colored prints of all the species known to Audubon in early 19th-century North America. Audubon insisted on the book’s large format — printed on the largest handmade sheets available at the time — because of his desire to portray the birds in their actual size and natural habitat.