Thane K. Pratt is wildlife biologist emeritus at the U.S. Geological Survey's Pacific Island Ecosystems Research Center and a conservationist of birds of the tropical Pacific. He is the lead editor of Conservation Biology of Hawaiian Forest Birds. Bruce M. Beehler is an ornithologist in the Division of Birds at the Smithsonian National Museum of Natural History and a tropical ecologist with interests in the birds and rainforests of the Asia-Pacific region. He is the author of Lost Worlds: Adventures in the Tropical Rainforest.