共 20 条
[1]
Alexander W.C., 1983, American Birds, V37, P26
[2]
ALEXANDER WC, 1980, AUK, V97, P198
[3]
SOME FACTORS INFLUENCING OBSERVED SEX-RATIOS IN A POPULATION OF EVENING GROSBEAKS
[J].
BIRD-BANDING,
1976, 47 (04)
:340-344
[4]
Bellrose F.C., 1980, DUCKS GEESE SWANS N
[5]
BELLROSE FRANK C, 1961, ILLINOIS NAT HIST SURV BULL, V27, P391
[6]
COX GW, 1968, EVOLUTION, V22, P180, DOI 10.1111/j.1558-5646.1968.tb03461.x
[7]
ERRINGTON P. L., 1939, WILSON BULL, V51, P22
[10]
Hair J.D., 1979, P ANN C SE ASS FISH, V31, P226