Brooklyn Museum - Purple Grackle or Common Crow Blackbird - John J. Audubon

John James Audubon (1785–1851) was an American ornithologist, naturalist, and painter. He was notable for his extensive studies documenting all types of American birds and for his detailed illustrations that depicted the birds in their natural habitats. His major work, a color-plate book entitled The Birds of America (1827–1839), is considered one of the finest ornithological works ever completed. Audubon identified 25 new species.