11 
Black-winged Petrel 
A total of 21 outside the grid and U within the grid were identified. 
An additional 119 Pterodroma hypoleuca were seen, probably nearly all of 
this race, 32 within the grid and 87 outside. This species was most 
numerous south and east of the area of high density of P, externa group, 
from Oahu to 16°N l67°W, Nearly all sightings were of 1-U individuals, 
the majority of them single birds. Almost none were in mixed flocks. 
Several individuals were recorded on November lii in the grid which had 
nearly all dark underwings. Distribution within the grid was random, 
Bonin Island Petrel 
Three individuals were identified to this race of Pterodroma hypoleuca 
outside the grid. Two seen together on 22 November were flying NE, The 
single bird recorded in the grid on 17 November was not seen well enough 
to distinguish it from Pterodroma leucoptera with certainty. It was flying 
NW. 
Kermadec Petrel 
The distribution of this species resembles that of the Juan Fernandez 
Petrel this month. One or two were recorded each day after leaving the grid, 
one within 30 miles of Oahu, Two were seen in the grid, on November 13 and 
111, the latter individual in a feeding flock of Juan Fernandez Petrels and 
Sooty Terns, Numbers are comparable with those of the previous two years 
for the same areas, the slightly higher number outside the grid reflecting 
a slight concentration in an area not previously sampled at this time. 
