The Golden-rumped swallow (Hirundo daurica daurica Linnaeus) is one of the commonest Summer migratory birds in the region of the human habitations in Changbai Shan, Jilin Province.They, usually arrive the mountain at the beginning of May to the middle of May, and remain there until the end of October. The breeding season lasts from the end of May until the end of August to the beginning of September. Breeding date begins slightly later in the north than the south. The majority of nests(97.5) were located on...