Birds were "the objects of my greatest delight," wrote John James Audubon (1785–1851), founder of modern ornithology and one of the world's greatest bird painters. His masterpiece, The Birds of America depicts almost five hundred North American bird species, each image—lifelike and life size—rendered in vibrant color. Audubon was also an explorer, a woodsman, a hunter, an entertaining and prolific writer, and an energetic self-promoter.