The bird collection of the Delaware Museum of Nature & Science (DMNH, formerly known as Delaware Museum of Natural History) consists of approximately 67,000 study skins, 3,000 spread wings and 11,000 skeletons. The holdings represent about 4,000 bird species. About 140 taxa are in the type collection. The collection, worldwide in scope, has especially strong holdings of Philippine and Central and South American birds. Extinct species are also represented. Formation of the collection began when the Museum was founded in 1957. Among the collections that can be found here are those of George Miksch Sutton, Allan R. Phillips, Olin S. Pettingill, D.S. Rabor, M. Hachisuka and specimens from Charles Sibley's expeditions in 1975-1977 .