David Clapp is a respected naturalist and teacher who worked extensively in land conservation and habitat management. David has taught at Northeastern University, lectured on strategies for land protection in the United States, Africa, Europe, and Asia, and consulted for an array of governmental and conservation agencies. He spent his professional career working for the Massachusetts Audubon Society and has led Smithsonian Journeys adventures for about thirty years. His research has included studies in avian populations and breeding birds of various species. Although natural history is his primary focus, David is interested in cultural history, geology, and evolution. He has been involved in ecotourism for more than thirty years and has led tours throughout the world. Especially through his involvement with ecotourism he has been able to train naturalists, provide natural history materials, and work with conservation organizations worldwide. His lectures run the gamut from plate tectonics and the history of the world to flight and migration as it relates to sites being visited. A naturalist of unusual breadth and depth, he has led Smithsonian Journeys practically from pole to pole. David is also an extremely gifted photographer.