R.K.Selander, 1952 63 Sept.4. Jaqueuto, Guanajuato to 16 mi.SE Lagos de Moreno, 6700 ft., Jalisco, Mexico. Left Jaqueto at 2:15 and drove to the above locality where I collected 2 C. brunneicapillus and an adult Pipilo fuscus (in formalin # 1447). Also get one black meelvid. After hunting for about an hour, we continued along, making camp at a point - 3 mi.SE Zacatecas, +8000 ft., Zacatecas, Mexico. Camped at 9:00 just off highway in stand of mesquite. Under cover of grass gorged heavily, noted numerous Peromyscus running about under mesquite busters. Heard a Killdeer (Choradrius vociferous) calling as it passed over at 11:00 P.M. No insects to speak of coming to light. Rather cold here. Sky clear; Moon full. Skinned one C. brunneicapillus and put another and a Pipilo fuscus in formalin. Sept.5 8 mi.SE Zacatecas, +8000 ft., Zacatecas. to Rio Mezquital, 6850 ft., 12 mi.NE Durango, Durango, Mexico. Before breaking camp at 8 mi.SE Zacatecas, I hunted about 1/2 hour in the mesquite and tuna cactus (see photo). Collected one juvenile Cactus wren (C. brunneicapillus) and two Toxostoma currirostre, Toxostoma rather common here in tuna cactus and mesquite. Heard a few others. Cactus wrena giving "Caw" call. Colaptes calus heard calling. Pipilo fuscaus - 4 seen in mesquite near our camp. Mexican goldfinch quite common. Ineas dorno present in small numbers.