Records of the Pallas's Grasshopper Warbler Locustella certhiola from Japan

Abstract

The Pallas's Grasshopper Warbler Locustella certhiola was found to transit the Japanese Archipelago by two ringing records from Hokkaido and Kyushu recently. Both two birds seemed to be adults, sex unknown, and the second one from Kyushu appeared to belong to the subspecies rubescens by the coloration of the plumage, size and distributional range. This species is a very rare vagrant in Japan, but it is expected that further records will be reported by ringers.