126 Pipilo maculatus Oct. 22 El Batl, 5100 feet, Sonaloa Encountered only 4 or 5 times in the past week. Each time; the species was present in dense undergrowth in areas where the oak-pine woodland was fairly dense. Two were killed on Oct. 18 on a steep slope along the ridge above camp, but only one was found. On all other occasions, the species was heard from thickets in deep, rocky draws or up on dense slopes where approach was unsuccessful or impossible, because of the roughness and slope of the ground. It is my impression that the species is probably a migrant or winter visitor here; the individuals seen have not behaved as locally resident birds in the manner of Berkeley Hills birds. Nov. 6-10 Castia, 40 km. S Nogales, 3300 feet, Sonora. Not common, but regularly met in areas of suitable habitat; i.e., abundance of the species here has been influenced importantly by grazing and by extensive clearing of the woodland. Found 1 along draw or on canyon bottoms most frequently near or in brush heaps formed by the crowns of felled trees particularly if nearby living vegetation afforded any ground cover. Encountered also, but much more rarely, on upland slopes, as in the vicinity of manzanita brush; here again availability of habitat is apparently the