共 18 条
[1]
[Anonymous], RESOURCE PUBLICATION
[2]
BELLROSE FC, 1950, 22 ILL NAT HIST SURV
[3]
Brownie C., 1978, RESOURCE PUBLICATION
[5]
Cormack R. M., 1970, J ANIM ECOL, V39, P24
[6]
FORDHAM RA, 1970, J ANIMAL ECOLOGY, V39, P3
[7]
GEIS AD, 1963, WILDLIFE INVESTIGATI, P284
[8]
Henny C. J., 1972, 1 US FISH WILDL SERV
[10]
Hickey J. J., 1952, 15 US FISH WILDL SER