PRELIMINARY REPOET AT-SEA SURVEY (N< $o£Vt Y CfinSf Aft' 
JULY 1965 
licrt including grid 
A/cAd Gr£! 0 fcTLfrCi c o8$£fc O^T( c MS 
This repoht summarizes the observations made at sea by Smithsonian 
personnel aboard the U.S.N.S. SHEARWATER during July 1965 * The 
Smithsonian team consisted of Dayle Husted (Biologist in charge), 
Richard Crossin, Brian Harrington and Jeff Tordoff. Excellent cooperation 
was received from the officers and crew of the U.S.K.S. SHEARWATER. 
A total of 11 days (2-6, 12-14, 22-24 July) was completed covering 
a total of 1114 miles and 114.3 hours of diurnal observati ns. The 
cruise included both the normal operations within the Smithsonian Grid 
and visits to Lisianski and Laysan Islands before returning to Oahu. 
As would be expected, numbers of birds increased substantially 
upon approach to any islands. This was most noticeable \Wiile approaching 
Sand Island during the 5th of July. 
Twenty-five species were recorded during the present at-sea cruise. 
This compares closely to 24 recorded during June 1965 1 but is considerably 
above July 1964 when 17 were recorded. Total numbers of birds during 
the present cruise were far above both those of July 1964 and June 1965 
for comparable areas. 
Discussions of the principal species groups follow, as well as 
pertinent aspects concerning the less bundant species. 
