From 3 to 11 June 1987 I camped near Spring Creek Pass, elevation 11,100 ft., San Juan Mountains, Hinsdale County, Colorado, to record and collect Red Crossbills (Loxia curvirostra). The site was in forests dominated by Engelmann Spruce (Picea engelmannii) and Quaking Aspen (Populus tremuloides) with interspersed grassy meadows. Patches of deep snow were present under trees and in shadier areas. The spruces had a heavy crop of cones which were drying and losing seeds. Moderate numbers of Red and White-winged (L. leucoptera) crossbills occurred around the camp. Single individuals and small groups of two to three birds of a single species were most frequent (some larger flocks were noted), and many of the 22 Red Crossbills I collected at this locality were in breeding condition. Pine Siskins (Carduelis pinus) were also conspicuous and performing circular courtship flights in the area. Mixed aggregations consisting of dozens of the three species were seen on some afternoons, with all three species in song. Birds foraged in the spruces and came down to the ground to eat snow and grit.