SOUTHERN GRID 
PRELIMINARY REPORT AT-SEA SURVEY NO. 11 
12-17 1966 
This report summarizes the observation and collection of pelagic 
birds made within the Southern Grid area during the period 12-17 October 1966 
The cruise track (see Figure 1) was designed to cover areas in all major 
directions from Howland and Baker Islands and also near more than 100 miles 
from both islands* Due to the shorter period allowed for the grid, this 
months coverage of the area was not as thorough as last month* 
The majority of the work was done by Paul Woodward (Biologist-in-Charge) 
Richard Chandler, Richard Heiden, Lawrench Huber and Frank Smith. While 
they were aboard ship the island survey team of Walter Bulmer, John Fitch, 
Chris Thompson, and Robert Tuxson aided in making observations. Excellent 
cooperation and assistance were received from the officers and crew of the 
U.S.N.S. SHEARWATER (T-AG 177). 
Diunal observations (sunrise to sunset) were made for 60 hours during 
which time the ship traveled 5>06 miles. A total of 2,ii60 birds of 28 species 
were recorded and 19 birds of 8 species were collected. Weather conditions 
were favorable during the whole cruise period. 
Nocturnal observations were maintained from sunset to sunrise for a 
total of 522 miles and 62 hours. One hundred and eighty-four birds of 9 
species were recorded during this time. The night of 13-lU October was 
spent drifting about 30 miles South of Baker Island. During this time 5 
Sooty Terns and 3 Leach’s Storm Petrels were collected. Another Leach’s 
