Turner, L. M. 1886. Contributions to the natural history of Alaska. U.S. Army, Signal Serv. Arct. Ser. Publ. 2. 226 pp.

U.S. Fish and Wildlife Service. 1972. Nunivak National Wildlife Refuge wilderness study report. Agency, Anchorage, Alaska. 200 pp.

U.S. Fish and Wildlife Service, Alaska Planning Group. 1973a. Proposed Alaska Coastal Refuges, Alaska. Agency Draft Environ. Statement 73-94. 247 pp. + appendixes.

U.S. Fish and Wildlife Service, Alaska Planning Group. 1973b. Proposed Togiak National Wildlife Refuge. Agency Draft Environ. Statement 73-100. 183 pp. + appendixes.

U.S. Fish and Wildlife Service, Alaska Planning Group. 1973c. Proposed Yukon Delta National Wildlife Refuge, Alaska. Agency Draft Environ. Statement 73-101. 205 pp. + appendixes.

U.S. National Park Service, Alaska Planning Group. 1973. Proposed Chukchi-Imuruk National Wildlands, Alaska. Agency Draft Environ. Statement 73-84. 306 pp. + appendixes.

Watson, G. E., and G. J. Divoky. 1975. Marine birds in the Beaufort Sea. Pages 681-695 in J. C. Reed and J. E. Sater, eds. The coast and shelf of the Beaufort Sea. Arctic Institute of North America, Washington, D.C.

Williamson, F. S. L. 1957. Ecological distribution of birds in the Napaskiak area of the Kuskokwim River delta, Alaska. Condor 59(5):317-338.

Williamson, F. S. L., M. C. Thompson, and J. Q. Hines. 1966. Avifaunal investigations. Pages 437-480 in N. J. Wilimovsky and J. N. Wolfe, eds. Environment of the Cape Thompson region, Alaska. U.S. AEC, Div. Tech. Inf., Oak Ridge, Tennessee. 1250 pp.