M. M. Erickson, 1933 1934. Colaptes cafer collaris Palm Canyon, Riverside Co., Calif. Dec. 27, 1933, 9:50 - Cals of a flicker heard from high on slopes of canyon. Fort Yuma, Imperial Co., Calif. Jan. 3, 1934. A group of six, possibly more seen along slough above Laguna Dam; were foraging on ground in open grassy short sparse grass near dead willows; one taken; others flew into willow arrowweed association. Calls have been heard on two previous days, but before seemed to be a single individual. Harrisburg, 1765 ft., Yuma Co., Ariz. Feb. 17, 1934. Red-shafted flicker flew over head from near ranch to base of mountains. La Paz Slough, 7½ mi. N of Ehrenberg, Yuma Co., Ariz. March 1, 1934. Seen and heard in neighborhood of slough.