1. Groth 1986 journal 108. Tennessee Pass elev. 10,400 ft. Eagle Co. Colorado June as no flocks were observed far from the midline of the pass. Gray Jays always about, foraging in groups of 2. Often after one individual would get a food item, either a handout or natural, the other would give a brief throwing-back vibrating of the wings with a begging note. I believe it would not be difficult to study the vocalizations of these Jays in their natural env't as calls seem to fall into neat categories: "wee-o", "wee-o-weet", etc... A noted pair came to camp regularly every 4 hours or so...) and foraged and I gave them bits of food. Abundant were the ruby-crowned kixlets in this area. Territories must be rather small, as might be expected for so small a bird. Pine grosbeaks were around. Pairs were the only group seen. Perhaps one pair frequents this spot. Mt. chickadees, white-crowned sp., Male brown-headed cowbirds - a ♂ Mt. bluebird foraged at this spot often a broad-tailed hummingbird, yellow-rumped