Table 1. 
Summary of at-sea 
Southern Grids), 
observations 
8 June-20 July 
(excluding 
1968 . 
Northern and 
Date 
No. Hours 
No. Miles 
No. Birds 
Birds/Lin 
8 June 
CO 
Cr\ 
58 
132 
2.26 
9 
13-2 
132 
132 
1.00 
10 
12.8 
128 
58 
0.45 
11 
12.2 
122 
214 
1.76 
12 
8 .A 
84 
80 
0.95 
6 July 
11. k 
114 
19 
0.17 
7 
i 
11.7 
117 
260 
2.22 
12 
3-1 
31 
104 
3-35 
15 
4 .9 
49 
227 
4.63 
18 
3-3 
36 
209 
5.81 
19 
12.3 
135 \ 
124 
0.92 
20 
12.5 
150 
32 
0.21 
TOTALS 
111.6 
1156 
1591 
1-33 
