UNITED STATES DEPARTMENT OF THE INTERIOR, STEWART L. UDALL, SECRETARY 
Stanley A. Cain, Assistant Secretary for Fish and Wildlife and Parks 
Fish and Wildlife Service, Clarence F. Pautzke, Commissioner 
Bureau of Sport Fisheries and Wildlife, John S. Gottschalk, Director 
Birds of Isle Royale in Lake 
Superior 
By 
Laurits W. Krefting, Forrest B. Lee 
Philip C. Shelton, and Karl T. Gilbert 
Special Scientific Report—Wildlife No. 94 
Washington, D.C. 
• June 1966 
