-7- 
breeding populations. 
Pterodroma externa 
A=1 
C-2 
D=8i* 
Juan Fernandez Petrel 
A=U 
B=3h 
C»1 
D=97 
White-necked Fetrel 
AO 
B—JU 
CO 
DO 
Number 
Collected 
=3 
Both representatives of this southern breeder were on their northern 
wintering grounds during this survey period. A marked northward 
movement was noted from September to October. Large active feeding 
flocks were recorded between Johnston Atoll and Oahg in October. In 
September the maximum concentrations were betweenl^ N and 2®N. Only a 
half dozen birds were noted below the equator. Three Juan Fernandez Petrels 
were collected. 
Tahiti Petrel A=0 BO CO D=1 
(Pterodroma rostrata ) 
I feel that identification of this species and the next can be 
accomplished readily after some experience with both. This species is 
larger and browner, with a heavier flight. The throat color is not 
reliable in the field. A single bird was recorded on October 19 in 
the 5°N area. 
Phoenix Island Petrel AO B=1 C«9 DO 
( Pterodroma alba ) 
An additional 3 birds recorded as this or the previous species are 
probably referable to P. £lba . Three birds were seen in the £°N area, 
the remainder were seen close to breeding areas in the Phoenix Islands. 
Kermadec Petrel A-l B=1 CO D“1 
(Pterodroma neglecta ) 
This accidental, typically regular in low numbers, was seen on 3 
occasions. 
Mottled Petrel AO BO C«l6 D«28 
(Pterodroma inexpectata ) 
All observations were in October with maximum numbers in the 2nd 
and 3rd weeks. Most observations were of single birds. 
