Foraging seeds of Barnyardgrass Echinochloa crus-galli var. caudata by Bewick’s Swans in fallow fields of Echigo Plain

Abstract

137 Bewick’s Swans foraged seeds of Barnyardgrass Echinochloa crus-galli var. caudata in fallow fields of Echigo Plain, at 11 December, 2005. Using fallow fields by Bewick’s Swans is rare.