R.K.Selander, 1953 H. chiapensis 7 SE side of Tonalá, 180 ft., Chiapas, México Oct. 25 We crossed the large river on the road said to lead to Puerto Arista, then headed south through grassy fields where there are many cows. There are semi-large to small trees - mostly broad-leaved scattered in these pastures but most patches of trees lack the tender cover of bushes which the wrens seem to favor. Perhaps the situation was too open and exposed. Did not notice much bull-horn acacia - except in small patches, mostly near the river. I believe that we hunted carefully enough through the open meadow and in the trees along the major brooks to have located wrens if they are indeed in that sort of habitat. However we failed to find a wren in 3 hours hunting and it was not until we returned to almost exactly the same spot where we collected the first wren in the morning that we found more of them. Heard what I believe was two flocks - one on each side of the dirt road. At least two birds in one flock and 5 in the other, 4 of the latter was collected - a ♀ and three juvenile males. Another bird escaped. Just after shooting these birds I found two nests placed in a small bull-horn acacia tree - perhaps 8½-9 feet above the ground. Other bull-horn acacia nearby but no nests. The tree with the nests was located just