Cogswell 1950 Oreoscopes montanus June 25 4900 ft. Sierra Valley, Sierra, Plumas Co., Calif. - 10+ seen in sagebrush covered areas of this open valley; these being noted while driving & at one brief stop. June 27 4700 ft., 1 mi. E, 3/2 mi. N Steamboat Sprgs, Washoe Co., Nev - 2 seen on top of tall sagebrush & antelopebrush bushes on alluvial slope W. of Virginia Range. June 28 5550-5600 ft., E of Boca Reservoir, Nevada Co., Calif - 2 seen, & 1 heard singing in open sagebrush & antelope brush valley. July 10 (a.m.) - about 5 seen in this same area. They seem to avoid the areas of pure sagebrush & grass, being concen- trated in stands of taller antelope brush (Burskia tri- dentata) & lower sagebrush, with some open ground between. July 11 (p.m.) 1 flushed from a Nest containing 5 eggs, placed 1 1/2 ft. above ground in stanger branches of an intertwinning bush (sagebrush & antelope brush). The bird returned within 20 min., for it flushed again when we showed the nest to someone else. 2 birds, presumably the pair, sat on tops of bushes 100 to 200 ft. away while we looked in the nest. No songs were heard. July 24 This nest now contains 3 (possibly 4) young. A pair of adults were seen nearby. July 26 Base of Steiger Grade, 4700 ft., 1 1/4 mi. ENE Steamboat Sprgs, Washoe Co., Nev - 2 seen in tall sagebrush along highway Aug. 7 E. of Boca Res. [see above] - pair seen in vicinity of the now empty nest, both with insects in bill. Aug. 21 5700 ft., 1 1/2 mi E, 3 1/2 mi. N Truckee, Nevada Co., Calif - 1 seen in low sagebrush.