JE Simpson, 1938. 2400 ft., Sierra de Mazatan (E. slope), 6 mi. N. Nacori, Sonora. May 20, 1938, continued. undergrowth-tree forest that densely covers the foothills and the mountain. To avoid this said jungle which made for very difficult and slow walking I started the hills by detouring to the south. In grass (dry-yellow) glade was surprised by three (one large, a medium, and a small) antlerless white-tailed deer which were temporarily unmoved (actually and figuratively) by my presence: However, my short stop and sudden bringing-to-shoulder of my shotgun started them moving fast—almost as fast as if they too rapid, "buck-fever" engendered shots (3). Tho the shots were running-brush shots and very difficult, the deer could have been taken with proper approach with the shotgun loaded with buckshot 18 and single ball) as the animals were within 75 yards of the "hunter". No more deer were seen. In a valley between the last foothill and the east slope of the base of the Sierra Mazata in area at least ½ by ¼ miles the white-winged doves are paired up by the hundreds—the continuous and multitudinous cooing throbs in your ears in the valley and from a distance the specificity and intensity of the sound compares somewhat to the full-blossomed choruses of a fresh-water marsh heard from a distance. I saw no mourning doves here at all.