Gombobaatar Sundev has been a leading Mongolian ornithologist and bird conservationist for more than 20 years. He is a professor of ornithology at the National University of Mongolia, the president of the Mongolian Ornithological Society, and has led numerous birding tours and research expeditions in Mongolia for birders and scientists from around the world.Christopher Leahy first visited Mongolia in 1982, and has led more than twenty natural history and birding tours to all parts of the country. A professional conservationist for 45 years. Chris was the Gerard A. Bertrand Chair of Natural History and Field Ornithology at Mass Audubon until his retirement in 2017, and he remains an emeritus professor.