C. nigricaudatus 43 Rancho Oreong, 16.1 mi. SE Tonala', Chiapas April 2 We never saw the wrens on the ground. They prefer the more middle levels of vegetation and logs which have fallen. The tail is cocked thusly a good deal of the time. The vegetation here is much lusher and not jungle- like that that around Rancho Ocnilapa. Actually, it seems similar in many respects to forest around San Fernando or Santa Rita, Chiapas, although there are few evergreen species. All in all it seems to be good wren habitat and there is a rather fair sized population in the area. No chionpensis heard or seen, and the reason for their absence is difficult to see. April 3 Drove to a point 12.1 mi. SE Tonala' and camped at a small rancho. Many pauquages calling in the night. April 4 Hunted around camp in a cleared forest area where we found a few nigricaudatus frequenting the trunks of the cut-down trees. Country here is dry and barren like with clumps of trees placed in fields of coarse, dry grass. Wrens were uncommon and widely spaced - we found only a few pairs and most of these around the ranch and in a gulley where the trees were large. Bonilacio shot a Ortalis vetula. In the afternoon we moved on to Rancho Ocnilapa, 8.6 mi. SE