Cogswell 1949 Journal 41 May 8 Mariposa Grove Big Trees Yosemite Nati Park, Calif. alt.6500' (contd). We left the area about 12:10 after having taken several photos, and noted the ff. vertebrates: Dendrocopos villosus - 1 heard Cyanocitta stelleri - 2 " Sitta canadensis - 1 " Certhia familiaris - 1 " singing Dendroica auduboni - 1 " + 1(other?) calling Hesperiphora vespertina - many in the tree tops, to judge by the calls emanating therefrom. Both the rattle and the wheezy whistle notes were frequent. I saw 1♂ at close range. Citellus lateralis - 2 together in sunny spot among approx.40 acre forest trees (not Sequoias) containing rock outcrop. Fish Camp, about 5000' alt., 2 mi. S of So. entrance to Yosemite Nati Park, Calif (Mariposa G.) - Lunch stop by the roadside here (about 31/4 hour). I took 15 min. tour of immediately adjacent Ceanothus cordulatus? thicket and conifer forest + walled from road as we ate. Following is list of species noted: Dendrocopos vellosus - 1 heard Contopus richardsoni - " " Nutellornis mesoleucus - " " Empidonax (hammondi?) - 1 Cyanocitta stelleri - 2 Dendroica aestivala - 1(♂)♂(sng) " occidentals - 2♂ " Oporornis tolmiei - 1♂ Hesperiphora vespertina - 1 heard Junco oreganus - 5 Passerella iliaca - 1(sng) Tamiasciurus douglasii - 1 heard Citellus lateralis - 2 fairy slope a few miles to S., where 1 Sciurus griseus also noted. A few Pinus murrayana were seen along the road just N. of here; otherwise the area is typical middle transition zone coniferous forest. No oaks in this area, though found abundantly on SE?