Portnoy, J. W., Erwin, R. M., and Custer, T. W., 1981, Atlas of gull and tern colonies: North Carolina to Key West, Florida (including pelicans, cormorants and skimmers). Abstract: Colonies of pelicans, cormorants, gulls, terns and black skimmers were inventoried in 1976 from North Carolina to Key West, Florida. Five teams of investigators used ground and aerial counts of nests or adults, or both, throughout the spring and summer. This atlas shows the location of each known active colony and includes information on nesting site and substrate, species composition and numbers, nesting stage, and inventory method. Field work was conducted in conjuction with a survey of wading birds under the direction of T. Custer and R. Osborn at the Patuxent Wildlife Research Center. Keywords: atlases, population-structure, Aves, ASW, USA, Southeast, marine-birds, geographical-distribution