Pipilo fuscus 20. Puebla, Puebla, Mexico to Oaxaca, Oaxaca, Mex. July 14, 1946 The last Brown Towhee seen in the state of Puebla along C.R. No. 21 was between the city of Puebla and Atlisco. 4 mi south of Atlisco, the mountain chain visible to the west, forming the eastern limit of the Valley of Mexico, could be seen falling rapidly in altitude. Our altitude 4 mi S. of Atlisco was 5400 ft. and we were on a downgrade. The country traversed by the road at this point is valley land, cultivated, with scattered tree and scrub growth, and occasional candelabra cactus. The low hills bordering the valley were covered with a heavy chaffa chaparral, probably low mesquite growth. 19 mi south of Atlisco, elevation was 4250 ft., temperature in the cab of the truck was 85 F. At Matamoros, elevation 4100 ft., the country is almost tropical in nature. Bananas, rice & sugar cane are under cultivation here. Boat-tailed grackles were seen commonly. This country is certainly unfit for occupation by P. fuscus. The combination of the high country on the eastern edge of the Valley of Mexico, plus the semi-tropical country which starts where the high country to the west falls off, probably keeps fuscus & pectoralis apart. 2 1/2 mi S.E. of Matamoros, we passed through a narrow valley bordered by low hills covered with scattered small