Clifford B. Frith is an ornithologist and wildlife photographer. He has held appointments at The Natural History Museum in London and has performed ornithological research for the Royal Society of London, as well as the Bird Department of the British Museum. Frith has also researched and professionally photographed birds in Australia, New Guinea, the South Pacific, the Galapagos, and many other locations. He is the author of six books, including two titles in OUP's Bird Families of the World series (1998 and 2004).