Table 1. Summary of Daily Observations S. I. Grid 1, September 1966* 
DIUPNAL 
^irds 
No. 
No. 
No. 
No. 
No. 
Date 
Sightings Flocks 
Species 
Miles 
Minutes 
September 
11 
63 k 
57 
4 
14 
110 
731 
12 
88 
35 
2 
7 
37 
235 
TOTAL 
722 
92 ” 
s 
15 
147 
96 ^ 
NOCTUPNAL 
10-11 
66 
53 
1 
3 
100 
606 
11-12 
12 
12 
0 
2 
114 
704 
TOTAL 
~7* 
65 
1 
“4 
* 
214 
• 1310 
GRAND TOTAL 
800 
157 
7 
16 
361 
2276 
Table 2. Diurnal Abundance 
■ of Species- 
-Groups. 
Species Group 
No. 
Birds/ 
55^000 O §quare miles. 
Birds 
Linear Miles Birds/Sq 
. Mi. 
Shearwater-Petrel 
450 
3.06 
1.530 
76,500 
Tropicbird 
6 
.04 
.021 
1,000 
Frigatebird 
3 
.02 
I..005 
250 
Shorebird 
2' 
.01 
.007 
350 
Tern 
261 
1.78 
.589 
29,450 
TOTAL 
722 
4.91 
3.400 
107,550 
Table J. Nocturnal Abundance of Species. 
Species Bird No. Birds/Linean Mile 
Wedge-tailed Shearwater 40 *19 
Pteroaroma externa 1 #01 
Unidentified Pterodroma 6 .03 
Unidentified Shearwater-Petrel 18 .08 
Ped-footed Booby 1 *01 
Sooty Tern 3 *01 
Unidentified Bird 9 *04 
TOTAL 78 *36 
