Brian K. Wheeler has been studying, painting, and photographing birds of prey throughout the United States and Canada for more than fifty years. He is the illustrator of Hawks of North America (Peterson Field Guides), the coauthor and photographer of A Photographic Guide to North American Raptors (Princeton), and the author and photographer of Raptors of Eastern North America and Raptors of Western North America (Princeton). His photographs have appeared in many other books and in many bird magazines.