지리산에서 번식하는 진박새의 육추 급이 활동성

Feeding Activities during Nestling Period of Coal Tit, Parus ater, Breeding in Mt. Chiri

Feeding activites during nestling period of Coal tit (Parus ater) were studied at breeding sites in Mt. Chiri. The average feeding frequency per hour of female Coal tit exceeded that of the male. The average excrement-cleaning frequency per hour of female exceeded that of male, with a longer feed duration. The feeding frequency per hour was generally higher in the morning, and the female exceeded the male in the frquency. It is shown that male of the Coal tit in nestling period played a major role in territorial defense compared with female.