R.K.Selander, 1952 Complahychnus brunneicollis Sept. 4 16 mi. SE Lago de Moreno, 6700ft., Jalisco, Mexico. Specimen: adult male placed in formalin. Dri red-brown, nestler than C. humilis; feet a nondescript brownish-gray. Plumage worn. Inner two primaries on either side new and sheathed at base for about 1/2 inch. Next outward primary on left side 1/2 inch long all sheath. Some feather on right side has just been dropped, as there is an empty follicle. Crests covert above 2nd primary on left side missing = empty follicle. Some on right side. Crests covert of inner primary new on either side. Outer secondary on either side new; sheathed about 1/2 inch at base, a little behind the inner primary in development. Crests covert new. Eighth secondary (counting toward body) on right wing new, and unsheathed about 1/2 inch at base. Some feather in left wing old. Remainder of plumage old & worn. Also took an immature ♀. These were taken in a situation similar to that near Japaceto. On a rolling hill near the highway, Tuna cactus, mesquite, and a species of broad-leaved tree dominant vegetation. Also several evergreen broad- leafed shrubs (large present). Also a tree showing short, short leaves growing directly from branches. A heavy undercover of grass and herbs. Cacti about 15 feet high at least. Wrens located in cactus along a stone wall (3 ft high) in thick stand of cacti and trees. Behavior of these birds rather different