Bourne 1952 Journal 20. Aug. 22 3 mi. SW Tres Rios, at 9000 ft., Rio Arriba Co., New Mexico approx. 5D, flying around farmhouse just as one enters the yellow pine zone from the valley. Commenced my morning collecting excursion at 8:00 AM. Ended at 11:00 AM. Observed the following: Red-shafted Sucker, Pygmy Nuthatch, Audubon Warbler(1), Grace Warbler (1), Orange-crowned Warbler, Paleolates Warbler, Mt. Chickadee, White-breasted Nuthatch, Clark Nutcracker (2), Broad-tailed Hummer, Colliege Hummer, Turkey Vulture, West. Wood Pewee, Violet Green Swallows (adults feeding young in nest in dead Yellow Pine), Gray- headed Juncos (numerous ad. + inv.), Hairy Woodpecker. Solitary Vireo, Western Bluebird, Rabbit(1, unknown sp.) Pocket Gopher diggings, Leard, Chipmunk. Bird temperatures as follows: Species Temp Time Conditions Grace Warbler 38.6°C 9:00 AM alive. Pileolates Warbler 40.6°C 9:40 AM dead 10 sec. Colliege Hummer 39.0°C 10:10 AM dead 30 sec. Violet-green Swallow 40.5°C 10:30AM dying. Discovered one Rose-bush. Fairly abundant blooms of a purple lupine + yellow daisy Will colled samples later. Juncos were found "loofing" in a young growth of pines (8 ft. high) and oaks. Aspen groves always yield a solitary or warbling Vireo. I have not as yet seen a golden-mantled ground squirrel, which have been taken by other members of party. They are speedingly large and fatty.