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Slender-biiled Shearwater: 
( ?uffirms tenuirostris ) 
Large numbers of these birds were seen on both the 16th and 17th 
of November (see table). These Shearwaters were observed both singularly 
or in flocks of up to 80 birds. Most of them were in flocks of from 10- 
30 birds. The dominant direction of travel for the Slender-bills was 
south, however, many were seen going southwest. 
Wedge-tailed Shearwater: 
( Puffinus pacificus ) 
Wedge-tailed Shearwaters were seen in high numbers on the 15th, low 
numbers on the 16th, and in moderate numbers on the 17th of November 
(see table). Seventy-one per cent were dark phase on the 15th (east of 
163-12W), 20% on tne 16th, and only 6% on the 17th of November (west of 
167-09)* Possibly we were in a transition zone between the northern 
(Johnston Island) and the southern (Line Islands) population on the l6th 
when we saw only 5 birds. Most of the birds observed on the 1$, 16, were 
alone or small groups (less than five). However, on the 17th, almost 
half of the birds seen were in searching or feeding flocks. There were 
no clear-cut directional trends for these Shearwaters on any of the three 
days. 
Audubon* s Shearwater: 
( Puffinus lherminieri) 
One Audubon's Shearwater was observed with a mixed feeding flock of 
Sooty Terns and Shearwater-Petrels on the 15th of November at 06-U6N: 
163-02W. 
Juan Fernandez Petrel: 
( Pterodroma externa ) 
This species was seen in increasing numbers as we traveled northwest 
towards Johnston Island (see table). An interesting point is that no 
Juan Fernandez Petrels were seen east of 163-12W near Palmyra Island, 
although two birds identified as Pterodroma externa were sighted. Tnis 
was a particularly good feeding area for species breeding in the Line 
Islands, however. A fairly high percentage of the birds seen on the 
l6th and 17th were in flocks (see table). No directional trend could 
be established for any of these birds. Apparently they were searching and 
feeding in the area. Perhaps they were sub-adult non-breeding birds 
or late migrating breeders. 
Dark-rumped Petrel: 
pterodroma phaeopygia ) 
Three birds of this species were observed during the 16th and 
17th of November as far south as 09-02N (see table). One was seen in 
a mixed feeding flock on the 16th. Considering the rari ty of tnis 
species, it seems fairly likely that they are using the area south of 
the Hawaiian Islands as a winter feeding ground. 
Phoenix island Petrel: 
( Pterodroma alba ) 
Two Phoenix Island Petrels were seen on the l£th of November east 
of 163-02 W. The relatively high numbers of these birds seen near the 
Lind Islands on this trip were probably from the Christmas Island breeding 
population. 
Tahitian Petrel: 
( Pterodroma rostrata ) 
Two Tahitian Petrels were observed on the l£th of November. One of 
these birds was in a mixed feeding flock of Sooty Terns and Shearwater/ 
