ハシボソガラスの生活史に関する研究I : 繁殖期(第I報)
1966 年 16 巻 3 号 p. 97-105
詳細
1966 年 16 巻 3 号 p. 97-105
This report deals with nest building (copulation)stage, egg-laying and incubation stage, chick-raising stage (chick-warming stage, non chick-warming stage) fledging, family stage, roost, share of male and female in the breeding season, territory and productive relations of life during the breeding season of the Eastern Carrion-Crow, based on the results of the outdoor observations for the purpose of studying the life history of the birds in the Zenkoji basin in Nagano Prefecture from 1963 to 1964. The main part of the observations was done in the Koshoku district in the southern part of the basin and most of the life history during the breeding season of the bird was described based upon the observation in 1964.
