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SMITHSONIAN GRID I Survey No. 23 i> 
PRELIMINARY REPORT At-Sea Survey 
July 1965 
Outside Grid only 
This report summarizes the observations made at sea by Smithsonian 
personnel aboard the U.S.N.S. SHEARWATER during July 1965* Fho Smithsonian 
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team consisted of Dayle Husted (Biologist in charge), Richard Crossing 
Brian Harrington and Jeff Tordoff. Excellent cooperation was received from 
the officers and crew of the U.S.N.S. SHEARWATER. 
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A total of 11 days (2-6, 12-lh, 22-2U July) was completed covering 
a total of mli miles and 11U.3 hours of diurnal observations. The cruise 
included both the normal operations within the Smithsonian Grid and visits 
to Lisianski and Laysan Islands before returning to Oahu. 
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As would be-expected, numbers of birds increased substantially upon 
approach to any islands# This was most noticeable while approaching oand 
Island during the 5 th of July. 
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-Twenty-five species were recorded during the present at-sea cruise. 
This compares closely to 21 * recorded during June 1965 * but is considerably 
' above July 1961 * when 17 were recorded. Total numbers of birds during the 
present cruise were far above both those of July 1961 * and June 1965 tor 
comparable areas. 
Discussions of the principal species groups follow, as well as 
pertinent aspects concerning the less abundant species. 
