Ravie 46 Pipilo fuscos 26. 4 1/2 mi. SE of Oaxaca, 5400 ft., Oaxaca, Mex. July 16, 1946. P. rutilus extends up the valley between Mitla and the city of Oaxaca. 10 mi. SE of Oaxaca, 5200 ft., Oaxaca, Mex. July 17, 1946. In the a.m. we drove south of Oaxaca about 10 miles and turned off a short way along a side road leading to a rather extensive patch of desert terrain: heavy, low mesquite scrub, and candelaria, tuna, and miniature barrel cactus. Spent about an hour hunting and saw not one Brown Towhee. Libley saw 4, and col- lected one. It is typical P. f. rutilus. In the p.m. we left Oaxaca for Mexico, D.F. The valley which continues south through Mitla continues north through Oaxaca. Just a short way north of the city of Oaxaca, a good view of the valley can be had, and the northern boundary of the valley, in the form of an east-west mountain range connecting the bordering mountain ranges, can be seen. 21 miles North of Oaxaca, the road starts to climb. At this point, at an altitude of 5900 ft., the valley floor can be seen below, and the vegetation is still scattered and erophytic. 2 miles farther on, at 6150 ft., the scrub oaks come in, and 1 mile farther on, at 6250 ft. pines show. 31 miles north, the