1972 年 6 巻 5-6 号 p. 569-571
We observed several flocks of the ground linnet Leucosticte arctoa at high levels of Daisetsu Mountains, central part of Hokkaido, during the summers (August) of 1970 and 1971.
Some of the individuals observed had a juvenile-like plumage pattern and one of them was being fed something by an adult male (Fig. 4).
Though it was not proved that the individual was a juvenile fledged in this season, this may suggest the breeding of the species in this area.