Cogswell 1950 Falco sparverius June 22 C side Boca Reservoir, 5600' ft. Nevada Co., Calif - 3 seen, 2 of them over open sagebrush flats & 1 over Jeffrey pine forest, chasing a Swainson's Hawk (see acct. of that sp). June 25- Sierraville vicinity, Sierra Co.; Beckwith, Plumas Co., Calif; and 5 of Reno, Washoe Co., Nev - 1 to 3, in farmland areas in each locality. I also in latter locality on June 27. June 28 5770 ft. 2 mi. W Boca Res. Nevada Co., Calif - a ♂ flew from Jeffrey pines (open forest) bordering a mile-long sagebrush & grassland valley. June 30 Soda Springs, 6800 ft. Nevada Co., Calif - 1 flew low thru open lodgepole - Jeffrey pine forest near Lake Van Vora, hotly pursued by 3 Brewer's Blackbirds. July 6 # Norden D.R. Sta. 6800', Placer Co., Calif - a ♂ was found with a broken wing, lying on its back under the many-wired telephone lines and being beset by about 20 Brewer's Blackbirds. They made short thrusts from nearby stances on the ground, or hovered over the crippled hawk. Their calls were raucous & the reason I went over to investigate. I re- trieved the hawk & turned it over to Byron Davis at the Audubon Camp who kept it alive about 10 days; but gangrene developed in the wound so he dispatched it. I think the hawk may have been fleeing from the blackbirds when it hit the wires. July 8 "Signal Hill" 7500 ft. 3/4 mi. WNW Donner Pass, Nevada Co., Calif. 3 cavorting together on breeze over open herb-covered slope