A record of autumnal breeding by Barn Swallows in Sendai City, Miyagi Prefecture, Northern Japan

Abstract

I observed Barn Swallows Hirundo rustica breeding in November 2020 in Sendai City, Miyagi Prefecture in Northern Japan. Although Barn Swallows usually breed only in spring-summer in Japan, two autumnal breeding cases have been reported since 2019 in central Japan. The autumn breeding in Miyagi is assumed to be the northernmost case to date.