gråkjernebiter Eophona personata

A large finch with a powerful hulking bill that is an inhabitant of deciduous and mixed forests. Adults are not extremely sexually dimorphic, unlike the closely related Yellow-billed Grosbeak; both males and females have gray bodies with black heads, wings, and tail. Migratory race breeds in northern and central Japan and northeastern China and Russia, and winters in eastern and southeastern China, where it tends to be less common than Yellow-billed Grosbeak. Resident race present year-round in central and southern Japan.