摘要
2 0 0 0年 3～ 4月在辽宁省凌源市对苍鹭的营巢习性进行观察表明 :苍鹭在营巢过程中雄性外出取材 ,雌性筑巢 ,营巢期 6～ 9天 ;雄性取材次数随着营巢天数的增加而增多 ,每日取材次数有两个高峰期 ,即上午 7～ 9时、下午3～ 5时 ;巢平均值为外径 5 0cm ,内径 2 9 2cm ,巢高 2 4cm ,巢深 11cm ,巢材主要为树木枯枝。
The paper reports the nest-building habit of Ardea cinerea in Lingyuan County, Liaoning Province. The nest-building period is about 6-9 days. In the process of nest-building,both sexes birds are division of labor: male to get material, female to build nest. As the days of building nest going on, the frequency of getting material of the male increased and with two peaks every day. The average capacity of the nest is 50 cm in outside diameter, 29.2 cm in inside diameter, 24 cm in height and 11 cm in depth.
出处
《四川动物》
CSCD
2002年第2期96-97,共2页
Sichuan Journal of Zoology
关键词
苍鹭
营巢习性
辽宁凌源
取材
Ardea cinerea
habit of nest-building
Linyuan County, Liaoning Province
