Selanders, 1954 63 El Mogote, Guerrero June 1 Since there is little chance of finding a good collecting locality lower down than El Mogote we have decided to head here tomorrow - then work north. Probably there is or was a good even transition between the type of arid tropical forest we are in now and the more arid forest of the Mazcala region .. Despite the heavy farming and its affect on the vegetation I think the lowlands west of El Mogote were originally more dense than on the slopes today. There is more cactus here - but only in small patches where the land hasn't been cleared or grazed. Along the clearances it is fairly burned - note lemons & oranges being grown - plenty of water for irrigation is available. Our best chance to find jocosus & gulosus will be north of here, possibly around Sultepec - but that is a mining town higher than most of this land. June 2 I hunted around camp and in the area where I took the single cactus wren yesterday. No signs of cactus wrens. I collected a few other birds then we drove to a point 1 mi. ENE Villa Guerrero where we had lunch along a stream in oak - other temperate trees and I hunted for about an hour without seeing any wrens. We then drove into Taluca. There are no good collecting spots in the area around Taluca but there are remains of the oak-pine forest on the hills which enclose the valley.