北红尾鸲繁殖生态的观察

Ecological Study on the Breeding Habits of Daurian Redstart

１９９６年—１９９７年的４月—９月，在山西省沁水县中村地区对北红尾鸲的繁殖生态作了观察。结果表明，该鸟在本区为夏候鸟，迁徙期为２月上旬和１０月下旬，种群密度为１．４只／ｋｍ２。营巢期７ｄ～８ｄ，最早５月１日产卵，窝卵数为４枚～６枚，孵卵期１２ｄ～１３ｄ，孵化率６９．３５％，巢内育雏１３ｄ，出巢率６２．９０％。繁殖期的食物，动物性的占９０．４７％，植物性的占９．５３％。

From April to September,1996 and 1997,the authors studied the breeding habits of daurian redstart( Phoenicurus auroreus ) in Zhongcun area,Qinshi,Shanxi.The result show that this bird is summer resident,immmigrating in late Feb.and emigrating in late Oct.,the population density is 1 4 birds per km 2.The period of building nest is 7～8 days,the earliest spawning in the first of May.A cluth consists of 4～6 eggs,the incubation lasts 12～13 days and rate of hatchability is 69 35%.The period of young birds in nests are 13 days and survival rate is 62 90%.In breeding period,the birds feed on insect(90 47%) and plant(9 53%).