COPWELL 1950 Poecetes gramineus June 22 - E. side Boca Reservoir, 5600 ft., Nevada Co., Calif. - many (late p.m.) singing on the broad flat covered by sagebrush or Antelope-brush. Density of shrub cover estimated at about 30 - 50 %, height from 1½ to 4 ft. June 28 8+ seen on 2 hr. walk over this same area in a.m.; no songs at this hour. 3½ fledglings with white outer tail feathers were seen. July 10 3+ seen - flushed from sagebrush July 24 NONE found on a similar coverage of this area. Aug. 7 1 flushed, + 1 other sparrow possibly this sp. Aug. 17 Little Truckee R. Valley, 5800 ft., 3 mi. E., 5 mi. N Hobart Sierra Co., Calif. - about 15 flushed from pastured grassland and willow thickets in stream valley surrounded by sagebrush. Although the sp. breeds commonly in the sagebrush around Boca, tho last few dates we visited there they had become scarce - having apparently moved away from breeding areas. Today's record indicates gathering in the moist swales of valley. Aug. 21 Proser R. Valley, 5860 ft., 1½ mi. E., 3½ mi. N Truckee, Nevada Co., Calif. - about 5 found in ¾ hr visit to same sort of wet, pastured valley with willow thickets along stream. Adjacent dry slopes had none.