TABLE 1 Summary of observations within the Oriel, August, 196$. 
Date 
No. Miles 
No# Hours 
No, Birds No. Species 
16 August 
nil 
12.6 
33 
9 
17 
no 
12.5 
85 
7 
18 
117 
12.7 
11*3 : 
9 
19 
10U 
12.5 
211 * 
9 
20 
105 
12.7 
310 : 
9 
*21 
108 
12..5 
61* 10 
Total 
658 
75.5 
81*9 15 (8.8/day) 
t 
* includes diagonal 
run towards Johnston Island not fonewing Grid 
pattern# 
TABLE 2 Diurnal 
density of species groups 
within the Grid, August 1965. 
Species Group 
No. Birds 
Birds/sq.ml. 
Estimated Population 
? Total 
/ 50,000 sq.mile 
Birds 
Shearwater-Petrel 
Uo6 
0.31 
15,500 
1*7.82? 
Terns 
U20 
0.21 
10,500 
1*9.1*7? 
Tropicbirds 
20 
0.015 
750 
2.35* 
Shorebirds 
1 
0.002 
100 
0.12? 
Misc. 
2 
0.003 
15° 
0.21*? 
Total Birds 
81*9 
0.65 
27,000 
100.00? 
