Subtly marked sparrow with a poor name; "rufous wing" is restricted to a tiny, barely visible patch on the shoulder. Gray head and neck with peaked rufous crown and rufous eyeline. Stout pink bill. Sides are buff and unstreaked on adults. Back and wings are also buffy with fine markings. Paler throat is edged with thin dark lines. Primarily a Mexican species with very limited range in the U.S.; found in pairs or small flocks in brushy grasslands. Variable song usually composed of a few clear tinkling notes and trills.