BIRDS OF THE CAMBRIDGE REGION. 207 



103. Surnia ulula caparoch (Miill.). 

 American Hawk Owl. Hawk Owl. 



Very rare visitor from the nortli in late autumn. 



I have an American Hawk Owl which Mr. Wihnot W. Brown shot in West 

 Somerville, not far from the stone powder-magazine, on November 16, 1889. 

 No other record for the Cambridge Region is at present known to me. There 

 is no definite evidence that American Hawk Owls ever breed in New England, 

 but they may do so occasionally, for the Messrs. Edward A. and Outram Bangs 

 have a young bird which they shot on August 10, 1878, at Point Lepreaux, 

 New Brunswick, only about twenty-five miles from the eastern border of Maine. 

 As this specimen retains some of its natal down, it probably was reared not far 

 from the place where it was killed. Most of the Hawk Owls which are noted in 

 New England come, however, from regions much further to the northward. 

 They sometimes appear rather numerously in late autumn and winter in north- 

 ern Maine and New Hampshire ; but even there they are seldom common, and 

 often apparently wholly absent. Their visits to eastern Massachusetts are still 

 more irregular and infrequent. 



104. Coccyzus americanus (Linn.). 

 Yellow-billed Cuckoo. Yellow-bill. 



Common summer resident. 



seasonal occurrence. 



May 4, 1896, one seen, Arlington, W. Faxon. 



May 12 — September 15. 

 September 26, 1870, one taken, Fresh Pond Swamps, W. Brewster. 



NESTING DATES. 



May 25 — June 8. 



Since my earliest recollection the Yellow-billed Cuckoo has been a common 

 summer resident of the Cambridge Region, but its numbers vary considerably in 



