Marshall,1938 Otus flammeolus Whitakers,June 1l,contin. began very softly,then louder,and came to clump of young Ponderosa Pines surrounding lg,Black Oak. Low in trees but not seen except in flight. Low, faint clucking sounds heard nearby - a female? Absolutely best view of behavior yet seen - bird very tame;stopped hooting & was watched foraging in oak.Would stay in one perch for a minuit or more, then would fly to another, once clearly making a dart at an insect on the way.Perched in the lower & middle parts of the tree,on bare branches. Alighted on stub about 6 ft. from my face.Seem3d to be infested with parisites - scratched with foot,shook feathers, preened here & there with bill,All movements remarkably speedy & energetic - shook feathers so violently that it was only a blurr.One pee peculiar movement done several times was stret- stretching head high & opening bill several time s as if ejecting something.Continually peered from side to side & up& down with very rapid movements of head .Looking for flying insects like Tyrannidae Tyrannidae?Looked intently up then flew in that direction directly to higher branch.May have been examining branches for spiders,etc;then flew to capture one. Posture, leaning forward - not upright , suggestive of alertness te& readiness to fly.&t,Gt. energy, trim,handsome,faleeln- falcon-like build - power full shoulders,tape8to pt. where large wings end behind tail. Not chunky & clumsy looking like most owls. Once, called several times after one short flight to pine. In lther another pine where sitting 8' off gnd., flicked wings like hermit thrush,twice. Color ation, when close, could see complex patternn of markings on white underpts; when farther,all blended into grayish uniform color,similar to bark trees. Followed me down rd.,called while in low pine. Shook out feathers again,wiped bill twice in succession on twig ,like linn&t.