长尾雀繁殖生态的研究

长尾雀在长白山为留鸟，是典型的“素食”瘪类，仅在育雏期有很少的动物性食物。繁殖期在筑巢适宜生境１．３对／ｈｍ＾２，冬季在繁殖期相同生境为０．０７４只／ｈｍ＾２．４月初开始有求偶追逐和争雌行为。５月下旬产卵。孵化期１２－１３ｄ．６日龄喂雏３５次／ｄ。６日龄喂雏３５次／ｄ，雏鸟在１０日龄后体温恒定，育雏期１３－１４ｄ。９月中旬后幼鸟换成成鸟羽色。

STUDIES ON THE BREEDING ECOLOGY OF THE LONG-TAILED ROSEFINCH

he present paper deals with the breeding ecology of the Long-tailed Rosefinch(Uragussibiricus ussuriensis)at the Mt.Changbaishan in the spring and winter of 1984 and 1985 andalso in the winter of 1986.The Long-tailed Rosefinch is a resident species inhabiting mash-land shrubs.It feeds on vegetable matter and only in the breeding period it takes some in-sects. In the breeding period there are 1.3 couples per square hectare in suitable habitats,but there are only 0.074 of the Long-tailed Rosefinch found in the same habitat in winter. Atthe beginning of April, they begin to show a mating the female Long-tailed Rosefinch behav-ior, In the latter part of May begins to lay eggs. The incubation period covers 12-13 days.Six-day-old nestlings are fed 35 times per day, and the body temperature of the nestling at anage of more than ten days becomes stable. The feeding period of nestlings requires 13-14days. After mid September the young adopt a plumage similar to that of the adults.