Abstract
Ruddy-breasted Crakes Porzana fusca have secretive behavior and prefer densely vegetated habitats, so there is little information available about the distribution of this species in Japan, especially on Shikoku Island. I used callback survey methods in Kagawa and Tokushima Prefectures on Shikoku Island during the winters of 2016-2018 at 45 sites identified by GIS (Geographic Information Systems) as having generally suitable habitat characteristics. Survey results identified 29 birds at 8 sites in Tokushima Prefecture, and 24 birds at 14 sites in Kagawa Prefecture. A total of 53 birds were identified at 22 sites of the 45 sites investigated.
