Pitella 1943 June 24 Hayfork, 2400 ft., Trinity Co., Calif. After breaking camp this morning we drove along a number of roads south and southwest of Hayfork, following separate two roads into the forest up from the Basin to obtain a better picture of the general character and distribution of the major habitats. Also, we investigated several grain fields for presence of Grasshopper Sparrows. The first road driven over was that leading S.SE from town toward Kingsbury Creek, Muells Mines, etc. After the cultivated areas of the basin floor, we entered a mixed pine-oak woodland similar to that in the vicinity of our camp east of Hayfork, but with perhaps more oak. The second road driven over led along Trile Creek approximately southwest of town. Here again, a similar forest was seen, but manzanita was the most abundant under-shrub species, probably because of the north to north-eastern exposure in contrast to more direct exposure to sunlight in the vicinity of camp. Following our return from this second side trip we again investigated for presence of Grasshopper Sparrows. (Earlier in the morning no songs were heard.)