Marshall 1939 Whitaker's Forest, Nov. 17-19 Cedar laden with beautiful reddish-gold cones. W. Bluebirds were perched in the tops of young firs in the clearing. Back at Whitaker's after dark: I covered the entire meadow- flat area & back to camp looking for F.S.O. None answered. Night clear, calm warm (for Nov) later a slight breeze. Moonlit. Heard a Spotted owl in tules at S edge Meadows Flat - which answered my F.S.O. calls with series of 3 whistles (whistle) Teo0 Teoo Teoo. Also gave screaming & whining calls. I couldn't see it. Saw a Mephitis (white in Y) in passage at roadside in canyon just W Whitaker's Forest (between Sequoia R.R. & '' ''). Apparently the F.S.Os are not answering or, as one would expect from their insect diet, have migrated out of this region. I had thought that if their migration is merely