Cogswell 1950 Cathartes aura 2 Aug. 21 Donner Cr., 5700 ft., 1 1/3 mi. E, 3 1/2 mi. N Truckee, Nevada Co., Calif. - 1 over sagebrush slope with few scattered pines. Aug. 23- 4580 ft., 1 1/4 mi. N Steamboat Sprgs., Washoe Co., Nev. 6 were perched low in rows of cottonwoods along a ditch by dry grassy field - appar- ently gathered by a carcaass. One flew up from the ground nearby & 1 was flying over sagebrush slope of Stege Grade a few mi. SE of here. Little Washoe Lake, 5020 ft., Washoe Co., Nev. about 5 soaring over valley, which now has extensive marshes in a very dry condition. Summary: The observations above indicate a greater restriction of nos. to desert- type of vegetation than we found to be the case in 1948. Foraging birds were seen over dense forests of both Lake Tahoe & Donner Pass areas in 48, same year.