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Jan., 1911 A IllSTORY OF CF, RTAIN GREAT IIORNEI) OWI,S 11 the uest consisted of the hiud parts of an adult cotton-tail, au entire striI)ed gopher aud a headless Bob-white. Various feathers of a Flicker also iudicated a capture of this species. I was agaiu without au assistaut. Ou April 28, with the hell) of Mr. George H. Burge, I was able to repeat Mr. White's performauce of three weeks before aud get a successful uegative of the uest aud conteuts. The youug were uow two weeks old, still quite drowsy aud inert, and eutirelv disiuclined to open their eyes toward the light. The onh' food iu the nest was the hiud quarter of au adult cotton-tail. Thus, for 1906,weather couditions thought to be insuperable and frequent iuabil- ity to get a helper when oue was ueeded had.permitted a net return of only three Fig. 7. MARCH 16, 1907; WHERE THE DEAD ARE MORE IN EVIDENCE THAN THE LIVING; OVa'LETS FOUR TO EIGHT DAYS OLI} good negatives. Further trips were made alone to the owls' home aud a few further observatious recorded. By May 9 the young seemed to have doubled in size and were wide-awake and combative. In size they were even then, at three and a half weeks, as large iu appearauce as a two-thirds grown Plymouth Rock hen. In the uest lay the hind quarters of an adult rabbit, a headless young rabbit about one- third growu, aud a large headless brown rat. Beiug away' from town myself, on May 16 Mr. White, with a studcut assistaut, went to the timber pasture Jutending to secure a fourth picture. The uest was fouud empty, the owlets having occupied it this season ouh- about four weeks. $oou after that, as I learned from one of the ueighbors, two little girls gathering flowers in the timber tract came across both