John James Audubon 
Audubon’s Birds [PDF ebook] 

Audubon’s ambitious project to paint all the birds of North America resulted in a work that represents one of the greatest advances in ornithology. Not only did he identify new species, he also depicted birds within their natural habitat and in vivid poses. This impressive collection ranges from the Greater Flamingo and Bald Eagle to the Carolina parakeet. Audubon describes every species in concise texts, drawing attention the peculiarities of each bird.