喜馬拉雅林鴞(Strix newarensis)繁殖生態學：繁殖、食性與捕食行爲描述

We found three nests of the Himalaya wood owl (Strix newarensis) in deciduous forests in the Central Mountain Ranges of Taiwan at the elevations of 900-2,600m, March 1996, February 2003 and March 2004. Each nest had 1 or 2 eggs. After hatching owlets stayed in the nests for 25.3±2.5 days, and then left the nests but remained in their natal areas (about 1,000m in diameter) for 4-5 months. Male and female owls played different roles in the parental care. Female incubated the eggs, kept owlets warm and manipulated food to feed the owlets for about two weeks after hatching, while male provided food to the female and owlets, and guarded the nest nearby. With increasing in the appetite of the owlets as they rapidly grew, the female left the nest for hunting, and her hunting period and distance became longer and farther with time. During this period both parents provided food for the owlets, but female provided more and larger prey than did by male. The major prey items fed by the parents to the owlets were mammals, of which large flying squirrels was the major food item (81.8%). There were three hunting behaviors of the adult owls: 1) sit and wait at low sites, 2) track and hunt at high sites, and 3) stand at tree holes.