White-necked Petrel a=6 b=0 c=0 
Juan Fernandez Petrel a=52 b=0 c=6 
The majority of birds of both races were encountered 
between 10 and 12°N. These concentrations are likely subadult 
birds not participating during the present breeding season. 
Two specimens of Juan Fernandez Petrels were collected. 
Black-winged Petrel a=2 b=0 c=0 
The two sightings occured north of 5°N where large con¬ 
centrations were recorded during September 1965* This race 
of the Bonin Island Petrel is presently concentrated on the 
breeding grounds in the Kermadec Islands. 
Gould's (White-winged Petrel) Petrel a=0 b=2 c=0 
Two birds were recorded south of the equator. Larger . 
numbers of presumably wintering birds were recorded from Samoa 
to 5% during the September-October 1965 cruise. 
Mottled Petrel a=0 b=0 c=1 
The single sighting occured south of Oahu on 18 March 
and likely represents an early migrant^9^the northern 
"wintering" area. Large numbers were migrating south to the 
breeding grounds during October 1965* 
Dark-rumned Petrel a=3 9=0 c=0 
The three birds were south of Johnston Atoll on 27-28 
January. Most sightings of this species are near the Hawaiian 
Island breeding areas. 
Bulwer's Petrel a=15 b=11 c=l8 
Most birds were recorded north and east of the Howland- 
Those recorded in early March appeared to be 
Baker area. 
