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池鹭Ardeola bacchus为林栖群集性鸟类。作者于1984-1986年对池鹭繁殖生态作了系统的野外观察和研究,现将结果作一报道。一、工作地点和方法工作地点在浙江西北部安吉县西亩林场12年生杉木林。1984、1985年进行数量、分布、栖息环境的调查,采用查巢、直接计数和查粪堆数等方法统计数量。用JD型照度计测试鸟出飞和回归亮度,并对孵卵期雌鸟鸣声进行音频分析。产卵期每日上、下午各查巢一次,育雏期隔日测定雏鸟生长,以拴颈法进行雏鸟食性和食量的测定,对鸟粪成分
Pond Heron Ardeola bacchus is a cluster of predatory birds. The author made a systematic field observation and research on pond heron breeding ecology from 1984 to 1986, and the result is reported now. First, the place of work and methods Working place in the northwest of Zhejiang Anji County Mu forest 12-year-old fir forest. 1984, 1985, the number, distribution, habitat of the survey, the use of check nest, direct count and check the number of dung and other methods statistics. The JD type illuminometer was used to test the flight and return brightness of the birds and the audio analysis of the female song in the incubation period. The spawning period of the morning and afternoon each check the nest once, every other day broodlings measured growth of chicks to tie-neck method for determination of feeding habits and food intake of bird droppings components