Marshall,1938 Otus flammeolus Whitakers,June 10,contin. On open pt. As usual,soft at first,then gradu- ally louder.Long silences (foraging).Flew bullet-like from high pine to fir clump where seen.Flew again.Silence, then hooted from 1/2- way up young pine lower on ridge. Flew with amazing rapidity to high,lone Ponderosa Pine w where seenas siluouette. Made rapid dart out & up ; swerve & back to perch.Accelerated fly- catcher style.Only interp.that it was catching insect on wing.Amazing dash & vigor.Minimum time in open;less danger. Distinctive triple call;second syll. shotened,not of equal inten- sity as lst, but slighted.Beetle Beet Boo-dp, boop ; etc. This bird's territory was on the way from camp to the area indicated above.At that area,a little later but still light,one suddenly called doudly from sm. yellow pine above rocks at edge low,flat grove.Approached to within 10 yd.Bright pinkish eyexhine. Flew down then up to another clump.Modified,muffled call given in flight. Hooted , then back to huge Black Oak .Then flew N 200 yd, heard a few times. On return trip, heard same owl in same area asdiscussed at top page(9).Stayed around clump firâ & pines encircling Black Oak as usual Same call (sec ind syll. slighted almost out of existance. Another in back ranger station - carried on ly 50 yd.- rushing haaad hoot - sparodic, soon stopped.Only 60 yd. from where m ale #413 was taken.Mate to # 413? June 11 Dusk; above haunted house,north place where # 377 shot.A different owl in terr. of bird with 4-syll. hoot,or else same bidd had changed voice to "bootle,boop" instead of "boo- tle-opp,boop".Accelerated once after high note heard.Another bird? * * * Discuss comparison with Poorwill. Is counterpt. in size,form,wing- surface,and food.(To be proven by examination of preserved stomach contents.) Later,cloudy ,full moon,calm.End rd.at NE corner property. A swered hoots. AS usual,