in this southeast corner and near Oahu. Greatly reduced numbers war© 
seen throughout the remaining area of the grid. 
Sooty Shearwater 
Only 239 of this species were seen in tie grid in April, an 8^ 
decrease from 1681* in March. This decrease is mainly accounted for by 
the thick wave of birds seen at the northern end of the grid on 3 April 
during the first cruise. Excluding this day, numbers seen during the 
two cruises were quite similar. No flocking has been observed in this 
sparing migration. All birds were headed north or northwest. On only 
one occasion four biards of tile species were observed resting on the 
- > 
water. None was observed feeding. 
Christmas Island Shearwater 
• i k 
One bird of this species was observed at close range on 25 April 
at the southern end of the grid. 
Newell’s Shearwater 
Twelve birds of this species were seen in April, a slight decrease 
from 13 in March. The biards were distributed north of the islands and 
in the southeast and southwest cornears of the grid. 
Sdander's Petrel ? 
A medium-sized smoky-grey petrel with large white patches on the 
undearwing surfaces seen very clearly at a distance of 50 yards 25 April 
was thought to lie this species. 
