TABLE 1. Summary of Southern Grid observations during the period 5-11 April 1966 
DIURNAL 
Date 
6 April 
7 
8 
9 
10 
11 
TOTALS 
♦ Miles 
No. Hours 
No* Birds 
No. Species 
90 
12.18 
783 
15 
80 
12.18 
1314 
12 
86 
12.00 
128 
7 
50 
12.05 
1406 
14 
87 
12.18 
233 
15 
101 
11.98 
198 
13 
494 
72.57 
4062 
26 (12.7/ day) 
NOCTURNAL 
5-6 April 
68 
11.88 
26 
6-7 
15 
11.91 
343 
7-8 
20 
12.08 
32 
8-9 
35 
11.90 
210 
9-10 
43 
11.90 
79 
10-11 
25 
11.93 
101 
11-12 
106 
11.81 
7 
TOTALS 
312 
83.41 
798 
GRAND TOTALS 
806 
155.98 
4860 
(Diurnal + 
Nocturnal) 
6 
6 
4 
8 
8 
12 
3 
17 (6.7/night) 
28 
