摘要
1996年— 1 998年的 3月— 9月 ,在蟒河自然保护区对雀鹰的繁殖习性进行了观察。结果表明该鸟在本区繁殖前后的种群密度分别为 0 .0 8只 /km2 和 0 .1 0只 /km2 ,营巢期为 1 0 d～ 1 3d,窝卵数 3枚～ 4枚 ,孵卵期 2 3d～ 2 5d,孵化率 88.89% ,育雏期 2 1 d～ 2 4d。其食物组成 :鸟类占 43.33%、鼠类占 1 7.77%、蛙类占 1 4.44%、昆虫占 1 5.56 %、其他占 8.89%。
From MAr. to Sept. of 1996 to 1998,breeding habit was studied of Accipiter nisus in manghe nature reserve.Results show that the population densities of this bird before and after its propagation are 0 08 birds/km 2 and 0 10 birds/km 2,respectively. Nest building period is 10 d to 13 d,3 eggs to 4 eggs in a nest, incubation period 23 d to 25 d,incubation ratio 88 89%, breeding period 21 d to 24 d. Its food components are birds 43 33%, rats 17 77%, frogs 14 44%,pests 15 56%,and others 8 89%.
出处
《山西林业科技》
2001年第3期25-26,39,共3页
Shanxi Forestry Science and Technology
关键词
雀鹰
繁殖
蟒河自然保护区
山西
Accipiter nisue
propagation
manghe nature reserve
