Mistura, J. H. (1963 Journal 10 June Hidden Forest, 7,900ft., Sheep Range, Clark Co., Haas Canyon, night for to the dry falls area. Heard or saw: hairy woodpecker, flicker, audubon & Bl-thr. gray warbler, R-C. Singlet, Broad-tailed Hummer. while on a high ridge at 5:45 a torrential hail storm hit; it fell in heavy curtains, whitening the ground. as stream bed again, storm let up and singlets & warbles sang. No birds collected. Flushed a thrush off of a near in an 8' high fn near to edge of stream bed on shaded side. Near 4' up on open - stream bed side of tree on horizontal branch half way between edge of canopy & trunk tightly woven veg. material. 7 am bluish eggs. The storm continued intermittently until 9pm. after 7 it turned to rain-quiet evening. 11 June Went up main Canyon with Fletcher to an Empidonax near nest then went on up to the head "waters" of the Canyon where there is an almost pure stand of Pines aristata - there were few species or individuals. Chiribados were the most abundant, next lushtile, then Black-throats Gray warblers, and one lucky - crowned Singlet. Juniper was mixed in with the Bristle-cone, also afew prion. This was about 9,000 ft. went down a ridge which was practically bare & went over into another drainage - which comes out 1 1/2 mi. below camp in Nesde, Broke Canyon. This rice was a magnificent Ponderosa forest, with no undergrowth - immensous snags and huge fallen logs. Worked over this area