The Acorn Woodpecker (Melanerpes formicivorus) is well known for its habit of storing food, especially acorns, in “granaries” (e.g., Ritter 1938, Bent 1940, MacRoberts and MacRoberts 1976, Koenig and Mumme 1987). However, the food items stored and storage sites used may be expected to vary geographically, depending on the availability of food items and potential storage sites. This note reports on food items stored and storage sites used by Acorn Woodpeckers at the Santa Rosa Plateau Preserve, Riverside County, California.