svovelspurv Emberiza sulphurata

Adult has yellow-green head and breast; both sexes have brown wings, yellow bellies, whitish vents, narrow white wingbars, and white eyering. Male is brighter in plumage, with small black patch between eye and bill. Immature male brownish overall, with a yellowish throat. Typically found in foothill forests, sometimes in scrubby meadows, fields, and parks on migration.