.Mottled Petrel cont. 
- 4 - 
ings were made in variable numbers throughout the remainder of the trip. 
Almost all sightings were of single birds. Although the flight pattern of 
this species is similar to those of the Sooty and Slender-billed Shearwaters, 
the striking color combination of the Mottled Petrel permits separation from 
those two species at any distance that color can be noted. All individuals 
were migrating in fast, direct flight in a southerly or southwesterly direction. 
No feeding behavior was ever noted. One specimen was collected. As with other 
specimens collected in the grid area, it contained very heavy fat, empty stomach 
and enlarged gonads. 
Kermadec Petrel a = 5 b = 2 c = 1 
The six individuals were all single sightings scattered throughout the cruise 
area. Three of the sightings were of birds in mixed feeding flocks. None was 
collected. 
Bulwer* s Petrel a = 93 b - 10 c = 22 
Large numbers were seen just south of Oahu during early September. Scattered 
sightings of low numbers were recorded throughout the remainder of the cruise. 
None was collected. 
White-throated Storm Petrel a = 0 b = 2 c = 5 
Two individuals were seen near McKean island and four were noted near Chrisomas 
Island. This species apparently remains near the islands where it breeds. None 
was collected. 
Hareourt*s Storm Petrel a = 0 b=0 c=2 
The two specimens were noted at very close range on 2 November between Christina 
Island and Oahu. No doubt a portion of the 48 unidentified white-rumpea storm 
petrels is referable to this species. Field identification of any oi tnese three 
(Wilson*s, Hareour! f s, and Leach’s) is possible only under exceptional conditions. 
Leach 1 s Storm Petrel a = 7 b - 0 c=7 
Seven individuals were recorded just south of Oahu in early SeptemDer. Sj.x 
were recorded between Christmas Island and Oahu during early November, and one 
was collected NE of Canton Island. A total of two specimens was collected. 
