共 20 条
[1]
BAKER AJ, 1975, J ZOOL, V175, P357
[2]
Clancey P. A., 1948, British Birds, V41, P115
[5]
DAVIS JOHN, 1954, CONDOR, V56, P142, DOI 10.2307/1364781
[6]
DICK WJA, 1976, ARDEA, V64, P22
[7]
Glutz von Blotzheim U.N, 1975, HDB VOGEL MITTELEURO, VVI
[8]
GREEN PT, 1981, RINGING MIGRATION, V3, P202
[10]
HEPPLESTON PB, 1970, BIRD STUDY, V17, P48