- 7 - 
Juan Pernande?: Petrel A=56 B=2 C=36 
White-necked Petrel A= 8 B=0 C= 0 
Pterodroma externa As 0 Bs2 0=73 
White-necked. Petrels in combination of both races were common 
between Oahu 'and the Southern Grid. Only a few sightings were recorded 
south of the grid. Similar distribution, but much lower numbers 
were recorded during April-May 19 66 . Collected specimens of White¬ 
necked Petrels during the present cruise had much of the dorsal 
neck feathers tipped with dark.thus obscuring much of the bright 
white neck area»^hls result of fresh plumage hinders separation 
of the two races in the field and for this reason it was considered 
best to refer to any doubtful birds as Pterodroma externa * A total 
of six specimens was i collected. 
Kermadec Petrel A=0 B=0 C=1 
A single individual was sighted on 20 August one day north of the 
Southern Grid. This species is consistently recorded in low numbers, 
but with wide distribution. 
Phoenix Island/Tahltlan Petrel A=2 B=12 0=10 
Practically all sightings of these species were south of 5°K. 
Individuals of these species have usually been recorded in lower numbers 
except for cruises near Christmas Island where a large breeding colony 
of Phoenix Island Petrels resides# At least three Phoenix Island 
Petrels were noted on Howland during the present cruise and one was 
collected# It had been tentatively agreed upon by most field personnel 
% 
