Marshall # (1944) General Acct May 13 James Carey Mt. Refuge, Ozark Co., Mo. & wild flowers ) where Prairie Warblers & Field Sparrows. The field sparrows occurred throughout the area wherever the trees get far enough apart - usually as a "bald" is approached. Flushed a pair of Chuck-wills from near fallen log - they kept returning to it and would call in broad daylight. The bird when flushed sits very still at L or branch & will head tilted slightly upward & once seen before flushed - perched squatting horiz on a stump near the fallen log. We couldn't find the nest. Saw grey-cheeked thrush. P.M. - Severe thunder storm & cloudburst. Elsie & I at dusk hiked up to near Chuckwill's nest. Shined the birds. Called Barred Owls & returned almost to camp (1/4 mi) back when Barred Owls answered (when we had been calling). I called again, and in 10 min they were in trees near us giving all sort of groans, trunks, howls, etc. Great whistle & occidentalis.