OCHET, JOHN 1989 Journal Zuni Indian Reservation McKinley Co. New Mexico August 25 I camped last night in a small canyon on the west side north of Threehead Canyon, just south of the upper extreme of Chasma Canyon. This little canyon, which I have called Upper Threehead Canyon, is clopt from sandstone and drains to the east. At its upper end, and in its draw above the canyon proper, is a ponderosa parkland of moderate size pines, with few dead standing trees. Above the canyon are a few scattered Gambel Oaks, and away from the draw the uplands are dominated by fairly close-growing pinon-juniper woodland. Narrow above the canyon proper is then extensive oakbrush. This is very different from the canyon itself. The top quarter mile has 20-30 large ponderosa pines in this 75 yard wide top end. Near the very top are a handful of large against Fremont Cottonwoods, and adjacent to these trees, on both walls of the canyon and especially on the S wall, are dense thickets of Gambel's Oaks, overtopped on the north wall by a copse substantial oak trees. Down canyon, ponderosas give way first to P-T, then to a big sagebrush canyon floor. When the canyon runs into Horsehead Canyon, the diversity floor adds several other species, and rattlesnake becomes most common. This canyon is the only place on the reservation hosting a tiny resident population of Acorn Woodpeckers, which are locally common in the Zuni reservation. Last night I heard provively, but no owls (N. pygmy owl & great horned owl are regular). I heard Acorn Woodpecker once as the eastern sky lightened a bit. I broke camp to reach for Blackrock Bosque well before sun up.