Large dove found in mature montane forests from the western U.S. and Canada into Middle and South America. Soft blue-gray above and unique purplish-gray below, with white crescent on the nape. Yellow feet. Bill is yellow with black tip in northern populations, all yellow in southern ones. Forms large flocks in coniferous forests and montane areas where it feeds on seeds and fruits. When it takes off, wings make loud clapping sound.