Juan Fernandez Petrel 
All 2o3 birds plus 14 with white napes, previously called White¬ 
necked Petrels, were found in the southeastern portion of the area . 
The limit of penetration is indicated by a line from 19° M on the 
eastern leg to the southwestern corner. This distribution is generally 
identical to that of hay 1964, although fewer birds (165) were seen 
last year. One bird was collected. Most individuals were undergoing 
molt. It is felt that distinction between subspecies of this 
species is not safe on the basis of whiteness of nape alone. 
Bonin Island Petrel 
One bird was seen at close range on 30 May, north of the high 
Hawaiian Islands. 
Cook T s Petrel 
Practically all of the 147 birds seen in May were in the southern 
end of the a rep Although fewer (69) were seen in May 1964, the 
U.0. 
istribution pattern was identical. Most birds were flying swiftly 
toward the northwest. 
Bulwer T s Petrel 
The majority of the 97 birds seen in May were within 100 miles 
of the high Hawaiian Islands. The remainder were scattered fairly 
randomly throughout the area. Fewer birds were seen in the 
southwest corner than in April. A large flight of some 12 individuals 
seen just south of Lauai in May 1964 accounts for the difference in 
numbers between this May and May 1964 (178). 
