the Rook, Starling and Chaffinch. 
15 
The rook was thus shown to be most harmful during the 
10 of the 12 months, in which the birds were received. 
The actual amount of grain eaten was proportionally greater 
than in 1912, and the amount of animal matter much smaller. 
Only 6 mollusca were found in the 92 birds, against 43 in the 
146 birds examined in the previous year. 
I 9 I 4- 
January. — Three birds only received. These contained : — 4 Wire- 
worms ; 4 Leather Jackets ( Tipula olercicea ) ; 1 Chafer larva ( Melolon - 
tha vulgaris) ; 2 Heart and Dart Moth larvae (A grot is exclamationis) ; 
1 Millepede ( Julus sp.) ; 3 Earthworms ( Lurnbricus ),* and 48 grains of 
wheat. One bird contained some beetle debris, all 3 contained stones 
and 2 grass. 
February-. — Seven birds examined. They contained : — 2 Leather 
Jackets ( Tipula oleracea ) ; 2 heads of Click Beetles ; 4 Dung Beetles 
(Aphodius fimetarius)*; 1 Earthworm [Lurnbricus)*; also 18 whole oats,- 
274 oat husks and 42 barley husks. 
March. — Eighteen birds were found to have 383 grains and 
husks, etc,, viz., 157 wheat, 385 barley, 22 whole oats and 10 oat husks ; 
6 maize and 3 acorns. The insects present consisted of 33 Leather 
Jackets ( T'ipula oleracea) ; 3 Wireworms ; 7 Fever Fly larvae (Bibio 
hortulanvCs) ; 1 Carabid larva ( Steropus madidus). Pieces of turnip 
were found in 2 ; grass in 1 and grit in 5. 
April. — The 4 birds examined contained no grain, but 35 Leather 
Jackets ( Tipula oleracea) ; 3 Click Beetles ( Agriotes sputator and 
Athous hcemorrhoidalis) ; 4 Carabid larvae (Steropus madidus) ; 6 Twist 
Snails ( Cochlicopa lubrica). 
One bird contained much decayed larval matter, and another 
pieces of bone. 
May. — The 7 birds examined contained 200 grains of wheat. 200 
of barley and 55 oat husks and oats ; also 5 larvae and 4 pupae of the 
Garden Swift Moth (Hepialus lupulinus), and 1 Millepede (Julus sp.). 
The Rook. 
Monthly Summary , 1914. 
Mon tli. 
Harmful 
Insects. 
t/> 
_ 
2 "3 
1 4 
Harmful 
Myriapoda. 
C6 
— 0) 
•S 8 
£ 22 
£ 2 
w 0 
Harmful 
Mollusca. 
1 Harmful 
1 Seeds. 
Beneficial 
Insects. 
— ( 1/ 
03 73 
O '2 
•XJ ^ 
c 0 
2 rtf 
O w, 
~ < 
Beneficial 
Myriapoda. 
03 * 
■§ 8 
. j-j rtf 
3 tS 
9 p 
i—i 1 
— 1 u 
0 0 
| $ 
Z 0 
X X 
Grain, etc. 
Neutrals. 
Number of 
Birds. 
January 
II 
O 
I 
0 
O 
O 
0 
0 
0 
3 
0 
48 
O 
3 
February 
4 
0 
O 
0 
0 
O 
4 
0 
O 
1 
0 
334 
0 
7 
March . . 
44 
O 
O 
0 
O 
O 
0 
0 
0 
0 
0 
383 
0 
18 
April 
42 
0 
O 
0 
O 
O 
0 
0 
O 
0 
0 
0 
6 
4 
May . . 
9 
O 
I 
0 
O 
O 
0 
0 
O 
0 
0 
455 
0 
7 
Total 
no 
0 
2 
0 
O 
O 
4 
0 
O 
4 
' 0 
1420 
6 
i 
•< 
39 
