Tendency for WecLge-tailed.-Shearwaters 
it S'/cj/t ( 
Catagory‘(no. of~B) Sept-Nov. 1963 
to group together 
O f 4 /va- tj' * 
Jan .-May 1964 
Total 
'ys 
i» of total 
1 (single birds) 
514 
180 
694 
73.1 
2 
102 
26 
128 
13.5 
3 
29 
12 
41 
4.3 
4 
11 
5 
16 
1.7 
5 
4 
8 
12 
1.3 
6 
5 
1 
6 
0.6 
7 
8 
0 
8 
0.8 
8 
0 
1 
1 
0.1 
9 
0 
0 
0 
0.0 
10-19 
10 
4 
14 
1.5 
20-29 
? 
1 
8 
0.8 
30-39 
3 
1 
4 
0.4 
40-49 
5 
1 
6 
0.6 
50-99 
3 
0 
3 
0.3 
100-199 
2 
0 
2 
0.2 
200 up 
2 
0 
3 
0.#3 
13, ( % , 
c - ".( L*J *-As 
$ <r< a 44.^ ^ ^ f 
*/ " 
( 
3 -<•■*•> j, C (y 
1 - 
lol ° ^ 
S' 
m 
% v/ 
