85 mr. Quetzalapa April 12 tracks. In several old stream beds there are Giant amates as the main stream bed meanders through the area. Many cattle grazing. There is very little understory beneath the amates and the amate is the chief tree near the river - no stands of small trees or greamehe. Roll 16- #9-10 river bed = #9 habitat of a pair of Chiafencis (which we shot), 10 show place where I saw a lone nigicandulus. #11-12 show ruins from new road to opening of valley - 11 where hill approaches river, #12 a little more N. Plants 41-50 are typical dry, low trees in the 2.6 mi. SE area and up to the town. April 13 Skinned four birds in morning. In afternoon pocketed truck and moved out to Study Area #1, 4.4 mi. NW Tonala' where we camped for the night. S[illegible] cawls calling in night. April 14 The place where we found a nest of Chiafencis early in our visit is located 1 mi. NW Tonala' in fairly typical chiafensis-type country. The hedgerowwhere Bonifacio and I worked several days ago is at 1.3 mi. Study Area #1 on the Rio Tiltetpec is 4.4 mi. NW Tonala'. At the Study Area we collected 7 humileis and 1 liug Wren. In the night we attempted to capture the liig Wrens which drove a nest in the study area - only a single bird was in the nest at 10:00 P.M. - We then drove on towards Arriaga. The good Tonala' vegetation