On 19 March 1972 we saw three Olive Warblers (Peucedramus taeniatus) on the southeastern slope of the San Francisco Mountains, Coconino County, Arizona. The three warblers included one male in breeding plumage and two individuals in female or juvenile plumage. We saw these birds foraging together in Ponderosa Pines (Pinus ponderosa) on a steep south facing slope at the upper edge of the Transition Zone (2640 m). The exact location was 35° 18' 30" N, 111° 36' 40" W.