The Online Books Page

Books by John W. Portnoy:

Books in the extended shelves:

• Portnoy, John W.: Atlas of gull and tern colonies : North Carolina to Key West, Florida (including pelicans, cormorants and skimmers) (The Team, 1981), also by Thomas W. Custer, R. Michael Erwin, Patuxent Wildlife Research Center, Migratory Bird and Habitat Research Laboratory (U.S.), Massachusetts Cooperative Wildlife Research Unit, and National Coastal Ecosystems Team (U.S.) (page images at HathiTrust)
• Portnoy, John W.: Atlas of gull and tern colonies : North Carolina to Key West, Florida (including pelicans, cormorants, and skimmers) (The Team, 1981), also by Thomas W. Custer, R. Michael Erwin, Patuxent Wildlife Research Center, Migratory Bird and Habitat Research Laboratory (U.S.), Massachusetts Cooperative Wildlife Research Unit, and National Coastal Ecosystems Team (U.S.) (page images at HathiTrust)
• Portnoy, John W.: Nesting colonies of seabirds and wading birds, coastal Louisiana, Mississippi, and Alabama (Dept. of the Interior, Fish and Wildlife Service, Office of Biological Services, Coastal Ecosystems Team, 1977), also by National Coastal Ecosystems Team (U.S.) (page images at HathiTrust)
• Portnoy, John W.: Potential changes in groundwater flow and their effects on the ecology and water resources of the Cape Cod National Seashore, Massachusetts (U.S. Dept. of the Interior, U.S. Geological Survey, 2005), also by John P. Masterson and Geological Survey (U.S.) (page images at HathiTrust)

Find more by John W. Portnoy at your library, or elsewhere.