Marshall, 1939 45. Otus flammeolus Yosemite July 20, 1939 I called in usual fashion and gave protest notes when I approached it closely. I saw it once as it perched in a young pine (lodgepole) out on the end of a foliated branch. Also saw it once high in a tall dead tree and shot at it with sling. Soon called a short distance away while I was in what seemed to be its territory, it would regularly use certain perches in several certain trees and return to each from time to time. Woody & I next hiked down the trail for 1/4 mi. at least attempting to call up other owls but this one followed me for the entire distance. Several times he followed without being called. This combined with the great distance involved seemed to show that this was not a territorial reaction, but