The range expansion of the Common Grackle (Quiscalus quiscula) into the western United States has been chronicled in recent issues of American Birds. Prior to this expansion, the species, while common in the eastern states (Dolbeer and Stehn 1979), was considered rare or local in the states surrounding Arizona. Sclater (1912) described the Common Grackle as locally common in summer in the plains and foothills of eastern Colorado. By 1940, the species had been reported twice in the Rocky Mountains (Bailey and Niedrach 1965). It subsequently spread into western Colorado (Kingery and Graul 1978, Chase et al. 1982), and increased rapidly there in the mid-1980s (Kingery 1986). In Utah, Hayward et al. (1976) considered it to be an accidental visitor, but in 1979 M. Perry saw four individuals near Altonah, Duchesne County (C. S. Robbins pers. comm.). By 1984, Behle et al. (1985) listed the Common Grackle as a rare summer resident, nesting at Vernal and possibly at Green River and Utah Lake. Kingery (1987a) reported nesting at Moab, Utah. Rysk (1985) considered the species rare in the Great Basin, but Kingery (1987a, b) reported it breeding at Buhl and Stillwater, Nevada. Vagrants are also known from Oregon, Washington, California, and Alaska (Roberson 1980).