TABLE 1. Summary of Southern Grid observations during the period 12-22 JulJ: 1966, 
Date 
No. Miles 
B3HRNAL 
No. Hours 
No. Birds 
No# Species 
12 July 
76 
5*97 
231*1* 
7 
13 
108 
11.05 
729 
13 
11* 
102 
11.02 
877 
9 
15 
.81* 
10.12 
825 
11 
16 
• 86 
10.1*0 
1*36 
7 
17 
90 
io.l*5 
622 
K) 
18 
117 
> 
10.95 
296 
7 
19 
69 
9.98 
276 
6 
20 
92 
9.62 
11*57 
12 
21 
69 
8.75 
1582 
11 
22 
113 
12.02 
1009 
12 
TOTALS 
1006 
110.33 
101*53 
21 ( 9.5/day) 
NOCTURNAL 
11-12 July 
133 
11.88 
61 
5 
13-11* 
97 
11.1*5 
125 
6 
Ii*-15 
89 
11.1*8 
760 
5 
15-16 
67 
11.80 
323 
5 
16-17 
69 
11.60 
610 
5 
17-18 
95 
11.85 
2L3 
1* 
18-19 
91 
11.81 
9 
3 
22 
2l* 
3.81 
12 
3 
TOTALS 
666 
85.68 
2113' 
13(l*.5/night) 
grand TOTALS 
1671 
196.01 
12566 
21 
