灰脚柳莺的繁殖和种群密度的初步研究
On the Breeding and Population Density of Pale-Legged Willow Warbler
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摘要: 灰脚柳莺(Phylloscopus tenellipes)是森林益鸟。它在世界分布较狭窄,在我国东北的中部和东南繁殖,迁徙时途径沿海各省直至云南。我们于1964-1965年和1979-1980年5-7月繁殖期在长白山北坡四个林带8个植物群落(陈灵芝等,1964)对灰脚柳莺繁殖和种群密度做了调查。Abstract: Observation were made on the breeding and population of pale-legged willow warbler at Changbai Shan,Jilin Province from May to July of 1946-1965 and 1979-1980.Results obtained are given below.