Abstract
Chestnut Bunting Emberiza rutila was recorded on Moneron Island, which belongs to the Sakhalin Islands, in Russia. However, there is no record of them on Sakhalin Island, the main island. One juvenile Chestnut Bunting was captured on September 5, 1999 at the Moguchi River on the Kril'on Peninsula, southwestern end of Sakhalin Island. This bird had a reddish brown rump, pale yellow underpart, and had no white mark on its tail. The only three inner greater coverts were replaced by the new first winter plumage, which were fringed with reddish brown. The rest of the plumage was still in the juvenile form. Skull ossification was in stage B. Sex was determined as female according to the wing length.
