Vol. 59'] MARSHALL and LEATHAM, Birds O[ Great Salt Lake Islands 35
Vol.59'] MARSHALLAND LEATHAM, Birds o[ GreatSalt Lake Islands 35 194 '• a BIRDS OF THE GREAT SALT LAKE ISLANDS BY WILLIAM H. MARSHALL AND LYNDON j. LF_•r•AM T•. nestingcolonies of birdson theislands of GreatSalt Lake, Utah, arejustly famous and havereceived considerable ornithological atten- tion. Suchpublications as those of Behle(1935), Woodbury and Behle (1933),Palmer (1916),and Cottamand Williams (1939),deal almost exclusivelywith theserookeries. Little hasbeen published on non- colonialbirds of the islandssince Ridgway (1877)visited certain of them in 1869. During the summerof 1938, field work for the U.S. Bureau of BiologicalSurvey provided an opportunityto obtain noteson birds of all the islands. Although the lists differ little from those for the mainland,they are of interestfrom severalpoints of view, as for comparisonwith Ridgway'slists of 1869,for the completecounts of individuals on certain small islands, and for the correlation of bird occurrenceswith certainhabitats. Most of the notesrepresent sight records,though, as indicatedin the lists,all birds of doubtful field identification were collected. Acknowledgmentsare due to Dr. D. I. Rasmussen,of the Biological Survey,and to Lee Kay, Utah Fish and GameCommission, for initiat- ing the seniorauthor's interest in the islandson the annual bird- colonycensus of 1937,when Bird and Gunnison Islandswere visited; to ProfessorT. C. Adams,of the University of Utah, who provided the data on acreagesof the islands;and to A.D. Smith, of Utah StateAgricultural College, who identifiedmany of the plantsfound. Specimensprepared, as indicatedin the lists, were identifiedby Drs. H. C. Oberholserand ClarenceCottam in Washington,D. C. Text-figure1 indicatesthe placesand datesat which observations were made.
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