摘要
笔者于1986—1987年6月,在黑龙江省宁安县渤海乡,尔站林场、镜泊湖水产养殖场,牡丹江市郊对云雀东北亚种(Alauda aruensis intermedia)的繁殖习性进行了观察,1988年3—7月又作较为详细观察,了解到云雀(东北亚种)3月末迁来本地进行繁殖.10月末迁去。刚迁来时雌雄单种群活动。进入繁殖期后,成对活动。在开阔的农田和草丛下营巢,每年的5月初至6月中旬产卵,每窝产3—5枚卵,雌雄共同孵卵,孵卵期11一12天,孵出的幼雏留巢期10天。雌雄共同育雏。刚迁来时云雀以植物种子为食,进入繁殖期后以动物性食物为主。
From 1986 to June 1987,the author observed the habits and characte- ristics of the reproduction of skylarks of the northern-east subspecies in Bo Hai Village,Er Zhan Forestry farm Jing Bo-hu aquatic product breeding farm in Ning AN County,the suburb of Mu Dan-jiang city,Hei Longjiang Province.From March to July in 1988,the author made a further and more careful observations,found out that skylarks (the nor- thern-east subspecies) move to this locality to reproduce by the end of March,and migrate to another place by the end of October.The male and female are grouped separately in their activities at the beginning of their arrival on this locality.When the reproduction period comes, they begin to appear in couple in their activities.They build their nests in the open fields or under the thick brush.They lay eggs from the beginning of May to the Middle of June,each time they lay 3 or 5 eggs. The eggs are hatched by the male and female together.The incubation period is about 11 or 12 days.The nestling stay in nest for 10 days and is bred by both the male and female.At the beginning of their arrival, they live on the seeds of plants.During the reproduction period,they live on animal food.
