Attributes / relations provided by
♦ ¹Ivory gull (Pagophila eburnea) distribution in late summer and autumn in eastern Lancaster Sound and western Baffin Bay, Wayne E. Renaud, Peter L. McLaren, Arctic Vol. 35, No. 1 (March 1982), p. 141-148
♦ ²Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979