John James Audubon was a naturalist and painter and is considered one of the greatest bird artists of all time. Born in Haiti in 1785, he spent much of his life travelling North America observing, catching and drawing birds and animals in remarkable detail. Using a variety of materials to create a highly dramatic style, he painted almost 500 species of the 700 or so regularly occurring North American bird species. He also painted other animals but it is his life-size illustrations of birds that he is most famous for. David Allen Sibley is a world-renowned bird artist, ornithologist and author. He is the author and illustrator of The Sibley Guide to Birds, considered by many to be the most comprehensive guide for the identification of birds in North America.