24 Trans. Acad. Sci. of St. Louis. 



Ortler LONGIPENNES. Long-winged Swimmers. 

 Family Stercorariidae. Slvuas and Jaegers. 

 37. Stercorarius parasiticus (Linn.). Parasitic Jaeger. 



Jjestris Richardsonii. Richardson's Jaeger (dark phase). 



Geog. Dist. — Northern part of northern hemisphere. Breeds 

 from Greenland along the Arctic sea-coast to the Behring Sea 

 and the Aleutian Islands. In winter from New York, IlHnois 

 and California southward to Brazil and in the Old AVorld to 

 South Africa. 



In migration it has repeatedly been taken in Colorado, in Kan- 

 sas (young male near Lawrence, October 10, 1898, in Nebraska, 

 September 13, 1898, near Lincoln), andMr.W.E.Praeger has in 

 his collection an immature male shot on the Des Moines rapids 

 October 6, 1896. Mr. J. D. Kastendieck of Billings, Christian 

 Co., Mo., has in his collection of finely mounted birds a specimen 

 taken on a mill-pond near Billings in August 1905. It was alive 

 when he secured it and he kept it several days, feeding it on 

 fresh meat and large insects, which it took eagerly from his hand. 



P'amily Laridae. Gulls and Terns. 

 Subfamily Larinae. Gulls. 

 40. RissA TRiDACTYLA (Linn.). Kittiwake. 



Lams tridactylus. 



Geog. Dist. — Circumpolar regions in summer. In America in 

 winter south to the Middle States and Great Lakes (AVisconsin, 

 Illinois, Minnesota, Wyoming and Colorado). 



As a rare straggler this species is placed in our hst by Mr. 

 John A. Bryant, who took a specimen near Kansas City in 1897. 



51. L.\Rus ARGENT ATus Briinn. Herring Gull. 



Larus argentatus smithsonianus. American Herring Gull. Sea Gull. 



Geog. Dist. — Northern hemisphere, including the whole of 

 North America. Breeds from Maine, the Great Lakes, Minne- 

 sota and British Columbia to the Arctic Sea. In winter along 

 the whole coast of California, the Atlantic coast, the Great Lakes 

 and the larger rivers south to the Gulf Coast, Cuba and Mexico. 



