共 12 条
[2]
CORKHILL P, 1971, Nature in Wales, V12, P258
[3]
DICKINSON H, 1958, SKOKHOLM BIRD OBS RE, P27
[5]
Lockley, 1953, PUFFINS
[6]
Lockley R. M., 1934, British Birds, V27, P214
[7]
MYRBERGET S, 1962, NORWEGIAN STATE GAME, P2
[8]
NETTLESHIP DN, IN PRESS
[10]
PLUMB W. J., 1965, BRIT BIRDS, V58, P449