LEEWARD ISLANDS Survey No. 13 
PRELIMINARY REPORT AT-SEA SURVEY 
June 1966 
PELAGIC ONLY 
This report summarizes the observations and collections made 
at sea by Smithsonian personnel during the Leeward Island Survey 
No. 13, 6-26 June 1966. The Smithsonian team consisted of 
Richard Crossln (Biologist in Charge). Kenneth Balcomb (Assistant 
Leader), Philip Shelton, David Hoff, Frank Smith, Richard Chandler 
and David Pearson. The cruise was made aboard the U.B.N.S. 
SHEARWATER T-AG 177. Excellent cooperation and assistance were 
received from the officers and crew members. 
A total of 10 days (6-9, 16 & 20, 22-25 June) of pelagic 
observations amounting to 1,60 miles and 106 hours was covfieed. 
During these periods 9,941 bietd of 24 species wereerecorded and 
28 birds of 7 species were collected ( tables 1 and 3). Collecting 
was primarily restricted to accidentals and species which at present 
are in questionable taxonomic or breeding status for the Leeward 
area. 
Practically a direct route from Oahu to Laysan was followed 
with a 2 hour stop on 8 June at French Frigate Shoals for the 
purpose of disembarking personnel (Amerson and Tordoff ) and their 
respective gear. An order received by the Shearwater to extend 
the Honolulu ETA on the return portion of the crtfiise resulted in 
spare time which was considered best used about Kauai where two 
subspecies (Newell's Shearwater and Harcourt*s Storm Petrel) and 
