K. Selander, 1954 C. nigricaudata 46 Rancho Deindepa, Chiapas April 5 thick a mass of vegetation high above the ground. Toto- pote trees nearly. As I approached the foothills the trees had less leaves and the low deciduous forest begins. In the gully there is a stand of big trees but they were not in full leaf - probably some species as along the stream but more deciduous. I found no wrens in the deciduous forest - very similar in many ways to more northern deciduous vegetation. As I approached the heavy stand of vegetation along the river and around the rancho I found a bird carrying nesting material to a nest in construction 18 feet up in a broad-leaved evergreen tree. Took 2 specimens (#4x5) and missed another. One of the specimens I collected was gathering the nest- ing fibers high in another neighboring tree and flying to the nest. All birds seem to forage on outer branches of this large tree - working along the branches and picking off insects. Forage notes - "quo-quo" given several in a series and low in pitch. Some good semi-low thickets really where the third bird flew after. I fired at it several times. Later nearby the road I took a pair (6-7) in a stand of small toto pote trees - an unusually dry situation. I did not find wrens in several similar situations visited and I assume that