1/2 mi. SW road along Rio Agua Dulce - Study Area # 2 April 11 The vegetation adjacent to the river at the study area is a coarse grass savannah dotted with small deciduous trees mostly small and with short trunks and many branches leaning the trunk lowdown, some of these tree have leaves; the majority do not. I imagine that this vegetation type is similar to the low deciduous forest which occurs uniformly on the foothills, including the hill which comes down to the river in the spot where the riparian vegetation narrows so much. Wrens seem to be restricted to stream side vegetation, I hiked up from the carts the area where I found chickensis and nigricaudalis humbles on April 7 (see pencil diagram). The stream divides in the area just adjacent to the hill. From the hill to the stream is about 200 yds. There is a growth of big anotes and guanocartes with a shrubby understory along both streams with the deciduous trees wider, spaced on both sides of the streams. There is a dry stream bed immediately adjacent to the hill covered with the low deciduous forest - a thick growth with no wrens inhabiting it. At the point of the hill the riparian vegetation narrows to 75 feet, widens a bit in the study area - then there is a long area where the riparian vegetation appears to have been cleared from the stream. Noted one nigricaudalis bird in a rather dry spot near the point of the hill. Just below stream from the narrow point I found a