Q. nigricaudatus 41 April 2 Rancho Oronoz, 16.1 mi. SE Tonala', Chiapas, Mexico Hunted SE of camp about 1/2 mile. Took several color shots (Roll 5) and nearly full roll of B&W (Roll 6) of wren habitat and of the surrounding hills. The hills con- tinue on both sides of the road beyond Pico Vernal but they continue on the seaward side & don't believe very far. Rio Oronoz Pico Vernal camp a couple of hillocks here where we are camped. The vegetation here is mostly deciduous. The gumocasto is the tallest tree but there are other tall trees. The greenest portion is around the river. Farther to the SE it is drier. Birds seen in association with nigricaudatus are : Halia gutturalis, green-pay, Thyrothorus pleurostictus and modestus, Thamnophilus delattus, Crotophaga, deterrus periculatus, Piaya cayana. When singing in the early morning but after about 10:00 they are rather silent. - Noted also Buteogallus, Anatinga, a chachelaca, Cariculus melanicterus (not common).