Bowman 1952 Journal. 19. Aug. 21 3mi. SW Tres Piedras, 9000 ft., Rio Arriba Co., New Mexico. Swallows (1), Mt. Chickadee (3), 1 Warbling Vireo - (in aspen), West. Wood Pewee (1), 1 Horned Lizard, approx 3/4 inches long found running across open area at 8:20 A.M.--some sun on granitic soil. Dry oak leaves nearby. Temperature of birds shot as follows: Species Temp. Time Condition Pygmy Nuthatch 41.4° C 7:10 AM death 5 sec. White-breasted Nuthatch 40.6° C 7:30 AM death 10 sec. Western Bluebird 41.9° C 7:30 AM death 30 sec. Willowson Sparrow 41.8° C 7:40 AM death 5 sec. Warbling Vireo 41.3° C 9:00 AM death 5 sec. For conception of poplar grove by camp, where 25 Museum species sat on evening of Aug 20 th, see photo. 1/5. Captured 4 Cercomys : 2 ad + 1 juv P. maniculatus, and 1 P. truei? At 6:30 pm a very ominous electric storm headed towards our hill, so we drove to Tres Piedras. On the way down hill we counted 10+ Poor Wills (short tails) which took off from the gravel roadway. Storm so severe that we remained at Forest Ranger's station overnight. Aug. 22 Returned to our campsite, after spending the night at Forest Ranger Station in Tres Piedras. Learned from one of the helpers there that the electric storm started a small fire about 3:00 pm a few miles N of Tres Piedras on Aug 21--caused by lightning. On our return to camp, counted a large flock of Violet Green Swallows