-tt-'Kl t j 
6 . 
Sew Zealand Shearwater (Puffinns dulleri ) # Obs. = 2 
One bird was chased by the skin in Section 1 and one bird 
approached the ship in Section 8. All grid sightings to date have 
been in the west section, mostly in sub-section 1. 
Black Storm petrel ( Oceanoaroma melania ) # Obs. = 5* 
All five birds were recorded ^shortly before sunset on 15 
September in Section 5• 
It- 
oxsu 
Birds 
Storm 
i 
Petrels 
• 
TT 
1 ' 
T -f+ 
— * T + 
1' 
- ’-r 
_ _ ! 
1 
_ 1 
- 
' 1 
_T_T_ 
t 
1 
— r 
1 
_ _ T 
- 
* -r 
-f ? — 1 *1 
T _ • 
1 
J 
» 
i t 
t 
1 
10 - 
July 
11 
- Aug 
ust 
12 - Aug-Sept. 
13 
- Sept. 
-jo 
.Linear Density 
hco 
199 
97 
.000 - 
.099 
- — — 
(double 
minus 
.100 - 
.199 
— 
(minus) 
.200 - 
.399 
= 1 
(unity) 
Aoo - 
.599 
_ 
(plus) 
.600 - 
up 
= -H- 
(double 
plus) 
Storm Petrel numbers reached a peak in mid-August and have 
subsequently been halved twice, in July two density centers were 
oresent. In August birds in the southeast corner spread outw^ru ^.o 
the west and center areas of the grid, gradually disperse^. and by 
September (EGS # 13) appear to have largely withdrawn, probaoly oo 
the south. This density center I suspect is postbreeding movements 
of Guadalune birds and other populations irom the upper region^ o. 
Ba-a California. The second high density area was first noted in 
July around Point "Dogwood" and evidently moved slowly to the north 
while dispersing slightly westward. This region of density appears 
-o be a fairly stable feature, and is probably partly due to 
oceanographic features resulting from the proximity to Point Conception 
A general southward movement was noted, (particularly notice¬ 
able from skiff observations) during the present survey. Dark-rumped 
birds were proportionally lower than the preceeding three surveys. 
