CAJ | 학술논문

1997年冬季在海南省松涛水库发现100多只鸢集群，鸢群出现位置为109°39′E，19°19′N，出现的时间大约在17：30时后，直到天黑，成群的鸢在山顶和水库的上空盘旋，持续时间长达30多分钟。1998年11月、12月及1999年2月，还在这里发现鸢群，并在1999年2月观察到鸢在该地筑巢。
1997년동계재해남성송도수고발현100다지연집군，연군출현위치위109°39′E，19°19′N，출현적시간대약재17：30시후，직도천흑，성군적연재산정화수고적상공반선，지속시간장체30다분종。1998년11월、12월급1999년2월，환재저리발현연군，병재1999년2월관찰도연재해지축소。
A single individual of Black Kite(Milvus migrans) or some 3～5 individuals flock of Black Kite had be seen in most cases before.The flock of about 100 individuals of Black Kite had hardly be seen.The flock of above 100 individuals of Black Kite was found when we made the avian survey at Songtao Reservior,Hainan Island in Nov.and Dec.of 1997.The exact position of Black Kite flock founded is 109°39′E,19°19′N.They flied continually in the sky over the reservoir and near mountain for more than 30 minutes from 17:30～18:30.The flock of Black Kite bred at this area also.