- 8 - 
TABLE IV 
SPECIES COMPOSITION AND DENSITY WITHIN THE NORTHERN GRID 
Species Number 
Wedge-tailed Shearwater 26 
Sooty/Slender-billed Shearwater 302 
Christmas Island Shearwater 1 
Pale-footed Shearwater 8 
Pink-footed Shearwater 1 
Dark-rumped Petrel 3 -*-'*** 
Pterodroma externa 110* 
Juan Fernandez Petrel 75 -*-** 
White-necked Petrel 5*"** 
Kermadec Petrel 1 
Phoenix Island/Tahitian Petrel 3 
Mottled Petrel k$ 
Cook's Petrel 2**** 
Pterodroma hypoleuca ^8 
Black-winged Petrel I 4 . 3 *** 
Bulwer's Petrel 10 
Leach's Storm Petrel** 10 
Red-tailed Tropicbird 2k 
White-tailed Tropicbird 3 
Red-footed Booby k 
Great Frigatebird 18 
Golden Plover 38 
Sooty Tern 173 
Gray-backed Tern 1 
Common Noddy Tern 3 
Fairy Tern k 
Pomarine Jaeger 1 
Long-tail Jaeger 1 
Unidentified birds 222 
/Lin . Mi. No 
. Coll. 
Status 
October 
over prior* 
averages 
O..Q35 oS5" 
0 
-0.07 b/l.m. 
0.401 
0 
-0.86 
n 
0.001 
0 
same 
TT 
0.011 
0 
+0.01 
tt 
# 
0.001 
0 
+ 
tt 
0.004 
0 
- 
0.146 
+0.08 
ft 
0.100 
4 
N.R. 
It 
0.007 
0 
N.R. 
It 
0.001 
0 
same 
1! 
0.004 
0 
+ 
II 
0.060 ,, 
0 
+0.05 
II 
0.002 >; 
0 
- 
0.064 
+0.04 
M 
0.057 
1 
N.R. 
II 
0.013 
0 
+0.01 
IT 
0.013 
0 
+0.01 
IT 
0.032 
4 
+0.01 
It 
0.004 
0 
+ 
TT 
0.005 
0 
+ 
tt 
0.024 
0 
+0.01 
IT 
0.050 
5 
+ 0.02 
It 
0.230 
0 
-0.08 
It 
0.001 
0 
+ 
It 
o.oo4 
1 
same 
IT 
0.005 
0 
same 
IT 
0.001 
0 
+ 
Tt 
0.001 
0 
0.295 
0 
- 
* See April i 960 Report 
** Includes all white-rumped Storm Petrels 
*** Included in above total 
**** Identification uncertain 
Note: Bonin Island Petrels, Blue-faced Boobies, and Brown Boobies have been 
reported from the gird in previous years but never commonly. 
* * ♦ 
