共 25 条
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[2]
DAVIS PG, 1974, SURREY BIRD REP, V21, P56
[3]
Gray D.B., 1973, Bird Study, V20, P80
[5]
HUGHES SWM, 1974, SUSSEX BIRD REPORT, V27, P64
[6]
JOHNSON E D H, 1971, British Birds, V64, P267
[7]
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[9]
Magee J. D., 1965, Bird Study, V12, P83
[10]
MAYFIELD HAROLD, 1961, WILSON BULL, V73, P255