Cogswell 1950 Empidonax wrightii June 21 - S slope "Signal Hill", 3/4 mi. W Donner Pass, Placer Co., Calif. 2 Empidonaces foraging from lower pine or fir branches & out over dense shrubby areas here are the most likely wrightis sirs seen yet. They called a single "pseet" and "pit", so voice didn't help. The habitat is more open than even the one pair in- habitating the detached fir clump in Cogswell meadow (see E. hammondii, June 17) June 24 - 6200 ft., 6 1/2 mi. W Donner Pass, Placer Co., Calif - after 1 1/2 hrs. (p.m.) or so of scouring the lodgepole pine - red fir forest, older thickets about an old pond, a chaparral clumps among open lodgepole - Jeffrey Pine forest, one Empidonax was located at the edge of the [illegible] last vegetation type. It sang from about 20 - 40 ft. up on various trees, particularly 2 scraggly graduated red firs on a rocky W-facing slope mostly covered by huckleberry oak, manzanita, Ceanothus sp. & a few Jeffrey Pines. I took special note of the song pattern before collecting it: "see-pit tsurrp pseet" was given at at times with times with adequately drop in pitch on the middle notes. at other times it gave: "tse'-sie seezl pa-seet" with a doubled rattled or note in the middle & not so much drop in pitch. Upon collection (my cat.# 146) it proved to be wrightis