Detailed wintering records of a subspecies of Long-tailed Tits Aegitholos caudatus japonicus in Lake Izunuma-Uchinuma

Abstract

Long-tailed Tits Aegitholos caudatus japonicus is a subspecies, a resident in Hokkaido, Japan. In the winter of 2023–2024, one to six (up to 20) A. c. japonicus were recorded intermittently from 23 December to 16 March in Lake Izunuma-Uchinuma in Miyagi Prefecture, northern Japan. This is the first detailed winter record of A. c. japonicus in Honshu.