482 
Dr. A. L. Thomson : Results of a Study of [Ibis, 
TABLE I. 
Numbers of Birds Marked and Recovered. 
Species. 
Total numbers 
marked. 
Total numbers 
of Reappear¬ 
ance Records. 
1 
Percentage of 
Reappearance 
Records. 
Song-Thrush. 
3,770 
52 
1*4 
Lapwing. 
3,142 
63 
2-0 
Blackbird . 
2,641 
68 
2-6 
Starling. 
1,900 
62 
3-3 
Common Tern . 
1,352 
6 
0-4 
Redbreast . 
1,206 
61 
5-1* 
Swallow. 
1,198 
5 
0-4 
Black-headed Gull . 
1,150 
27 
2-3 
House-Sparrow. 
1,041 
71 
6-8* 
Greenfinch. 
1,021 
45 
4-4* 
Hedge-Sparrow. 
898 
66 
7.3# 
Chaffinch . 
811 
17 
2*1 
Blue Titmouse . 
653 
70 
10-7* 
Willow-Warbler . 
501 
1 
0-2 
Herring-Gull. 
461 
25 
5-4 
Mallard. 
425 
95 
22-4* 
Wren . 
274 
2 
0*7 
Red Grouse . 
265 
11 
4-2 
Partridge ... 
256 
15 
5-9 
Mistle-Thrush . 
230 
1 
0-4 
Sky-Lark ... 
228 
0 
0-0 
Pied Wagtail. 
217 
0 
o-o 
Spotted Flycatcher . 
203 
2 
1-0 
Yellowhammer. 
193 
2 
1-0 
House-Martin . 
183 
0 
o-o 
Linnet . 
176 
0 
o-o 
Great Titmouse. 
172 
32 
18*6 # 
Woodcock. 
156 
21 
13*5 
Meadow-Pipit . 
150 
1 
0-7 
Wheatear . 
146 
0 
o-o 
Wood-Pigeon. 
132 
12 
9-1 
Whitethroat . 
130 
0 
0-0 
Common Gull . 
102 
3 
2-9 
Sand-Martin . 
92 
0 
0*0 
Moorhen.".... 
88 
2 
2*3 
Ringed Plover . 
85 
1 
1-2 
Grey Wagtail . 
84 
0 
0-0 
Oystercatcher .j 
79 
1 
4 
5-1 
* In the species marked thus the proportion of recoveries must be 
regarded as abnormally “ inflated ” owing to special activities 
on the part of the markers : the remark applies to a lesser 
extent in certain other cases. 
