STUDIES ON THE BREEDING ECOLOGY OF THE LONG-TAILED ROSEFINCH
长尾雀繁殖生态的研究

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.