Temescaltepec, Mexico, Mex. to Zacata, Michoacan, Mex. July 30, 1946 would be too low for the existence of Brown Towhees (below where we crossed it in Guerrero at 1700 ft). The main road, west of the junction with the Temescaltepec road, passes through a great stretch of rolling, grassy farms grazing land. We crossed several fine ridges on the way to Zitacuaro, about 65 miles from the road junction. Brown Towhees were seen 8 mi. E of Zitacuaro, 8000 ft, and again at the following localities: - 2 mi. W of Zitacuaro, in a maguey hedge; 12 mi. W of Zitacuaro; 1 mi. W of Tzintzan; 9 mi. W of Ciudad Hidalgo; 17 mi. W of C. Hidalgo; at Milumbres (town of ?); 13 mi. E of Morelia, 6750 ft; 7 mi. E of Morelia; Morelia, 6400 ft; 2 mi. W of Morelia; 8 mi. W of Morelia; 14 mi. W of Morelia; 16 mi. W of Morelia; Quiroga, 6900 ft; 2 mi. W of Quiroga, S. P. franss; 5 mi. W of Quiroga. Further records were prevented by the advent of darkness. The region in the hills beyond Milumbres for about 105 miles was traversed in a terrible hail storm which precluded observation. The stretch from the junction of the Temescaltepec road and C. N. 4 passed through rolling grassland for the most part, and was traversed at a poor time of day. There are undoubtedly Brown Towhees all the way down this valley. In other words, there seems to be a continuous population all the way from San Miguel de Allende.