O. zonotus 28 12 mi. SSW Boradel Rio, Veracruz May 19 located a pair in large clump of bushes & trees, including one large guanacaste-type tree, where I found a pair of rufimucha yesterday. Heard several other pairs calling in thickets at edge of field. The habitat of this species as rufimucha must be very similar in this area as the veg- estation is fairly uniform = open fields of low scrubby acacia (?) bushes mixed with two types of palms, a tall coconut-type and a shorter, rough-trunked type. Alternating with these fields are thick patches of trees broad-leaved bushing good size - a guanacaste type is very common tree. The two wrens are about equally common here but zonotus is more frequently seen because it spends much time in the higher trees- a thing which rufimucha does not do. Most of my specimens of zonotus have been taken from the tops of the taller trees but I have seen these wrens in low trees - bushes in situations where I expected to find Burmilia Rufimucha. Along the Rio Atoyac there is a line of guanacaste and other trees in which I have not yet hunted. There are no wrens around camp but seemingly this is some fair habitat for one or the other of the wrens.