共 20 条
[2]
BROWN RGB, 1975, ATLAS EASTERN CANADI
[4]
COLLIER RV, 1976, BRATHAY FIELD STUDIE, V29, P1
[5]
COULSON J. C, 1968, BRIT BIRDS, V61, P1
[6]
COULSON JC, 1976, BIRD STUDY, V23, P21
[8]
FURNESS RW, 1977, THESIS U DURHAM
[9]
HALDANE JBS, 1955, 11 ACT C INT ORN, P454
[10]
JESPERSEN P, 1930, 1920 1922 DAN DAN EX, P1