Erichson 1934 Mysarchus cinerascens cinerascens Tingajas Altas, 1150 ft., Yuma Co., Ariz. Jan. 15, 1934. One seen in mesquite tree near mouth of canyon with tank, collected. Tingjas Altas, Jan. 17, 1934. One seen in mesquite tree near point where one was taken on 15, collected; wing damaged by shot, bird saw refuge in thick cactelaw tangles of region; finally driven from this and secured as it fluttered across open area. 1 mi. east of Papago Well, Feb. 4, 1934. One flew over crest of hill into palo verde tree near point from which I was watching oak warren; collected. La Paz Slough, 7 1/2 mi. N of Ehrenberg, Yuma Co., Ariz. March 1. One in willows about slough, singing.