9 
be due more to the differences in time than in location. Though observed 
only on the westernmost grid leg, equally large numbers may have been present 
on a broad front throughout the entire grid on November 17* The results 
obtained by the USNS Shearwater in the same areas a few days apart from the 
present observations should support one view or another. 
These large numbers may represent one "wave" of migrants which departed 
from the Arctic waters at approximately the same time. Another possibility 
is that numbers of birds accumulated to the north of a large storm center 
in the Hawaiian Islands area or detoured around it to the west. Though the 
effect, if ary, of weather conditions on oceanic species is presently unknown, 
it is conceivable that large storm fronts might be avoided, especially by 
migrants. 
New Zealand Shearwater 
One individual believed to be this species was flushed from the water 
on November 20 in the vicinity of 20°N - 167° W. 
Pale-footed Shearwater 
Two separate individuals were recorded on November 20 in the same area 
as the New Zealand Shearwater. Another was seen on November 11 about 180 miles 
NE of Johnston. None were recorded in the grid. Both these New Zealand 
species have been recorded previously in the area in fall, always in very 
low numbers. 
Newell*s Shearwater 
One bird was seen the first day about 20 miles off Oahu. Another was 
seen in the grid on November lU in a small flock of Sooty Terns and Juan 
Fernandez Petrels. Numbers are comparable with previous November records. 
