The Online Books Page

Books by Sam Droege:

Books in the extended shelves:

• Droege, Sam: North American breeding bird survey : annual summary, 1988 (U.S. Dept. of the Interior, Fish and Wildlife Service ;, 1989), also by John R. Sauer, U.S. Fish and Wildlife. Research and Development, U.S. Fish and Wildlife, and U.S. Fish and Wildlife Service. Office of Migratory Bird Management (page images at HathiTrust)
• Droege, Sam: North American breeding bird survey : annual summary, 1989 (U.S. Dept. of the Interior, Fish and Wildlife Service, 1990), also by John R. Sauer, Patuxent Wildlife Research Center, and U.S. Fish and Wildlife Service. Office of Migratory Bird Management (page images at HathiTrust)
• Droege, Sam: Survey designs and statistical methods for the estimation of avian population trends (U.S. Dept. of the Interior, Fish and Wildlife Service, 1990), also by John R. Sauer, Patuxent Wildlife Research Center, and U.S. Fish and Wildlife Service (page images at HathiTrust)

Find more by Sam Droege at your library, or elsewhere.