10 
Table 4. Nocturnal Abundance of Species in the Southern Grid 15-24 Sept. 1966 . 
Suedes 
No. 
Birds 
Birds/ No. 
Linear mi. Collected 
Pale-footed Shearwater 
1 
.001 
Sooty/Slender-billed Shearwater 
312 
.421 
Pterodroma externa 
1 
.001 
Pterodroma species 
5 
.006 
♦ 
Shearwater-Petrel 
17 
.022 
Storm Petrel (including Leach’s) 25 
.034 
Ped-tailed Tropicbird 
2 
.003 
Blue-faced Booby 
15 
.018 
Bed-footed Booby 
5 
.004 
Prigatebird species 
4 
.005 
Sooty Tern 
185 
.249 
Gray-backed Tern 
2 
.003 
Tern species 
2 
.003 
Bird species 
40 
.054 
TOTALS 
612 
.825 
10 
1 
5 
1 
s 
