174 PACIFIC COAST AVIFAUNA No. 14 



na would not be so unusual as might be implied from the range as given in the 

 A. 0. U. Check-List. This, however, is not a strong enough reason to admit to 

 the state list a subspecies of so variable a bird as B. borralis, on sight identifi- 

 cation alone, when so far from its normal range. 



Coccyzus americanus occidentalis Ridgway 

 California Cuckoo 

 An egg, evidently that of a cuckoo, was picked up at Flathead Lake, July 

 o. 1900 (Silloway, 1901a, pp. 29-30). The bird itself has never been seen in that 

 region. Since this subspecies has been found in northern Idaho, it may also occur 

 rarely in northwestern Montana. At any rate it is more likely to have been a 

 subspecies of Coccyzus americanus whose egg was found than C. erythroplithal- 

 mus, whose western limit in eastern Montana lies in a totally different faunal 

 region. 



Xenopicus albolarvatus (Cassin) 

 White-headed Woodpecker 

 Seen several times in the Gallatin Canyon in summer and fall, a single bird 

 at a time (Thomas, MS). This is rather far east of the normal range for this 

 species. Tt is another case where we iiuist wait for a specimen to verify the 

 record. 



Archilochus colubris (Linnaeus) 



RllBY-TIlKOATED HUMMINGBIRD 



Rare in Custer County. Xests said to have ])een found on tlie Powder River 

 and in Miles City (Cameron, 1IMI7, p. '-VM)). This species was not observed by 

 Mr. Cameron himself, but by others, who found the nests mentioned. Since 

 •Shlhila calliope occurs in the region, it would be easy to mistake the two spe- 

 cies, particularly the females, wliich would be liable to be the only ones seen 

 about the nest. 



Aphelocoma woodhousei ( Baird ) 



W(.)ODiiuusE Jay 

 Seen at Billings, August 12. 1900 (Jones and Dawson. 1900, p. 32). It 

 .seems entirely possible to mistake the Pinyon Jay in the field for this bird, par- 

 ticularly if the observer had no previous acquaintance w'ith either species. Mr. 

 Tliomas has been looking for the Woodhouse Jay about Billings at my request. 

 He writes that the Pinyon Jay is common, and he supposed it was woodhousei 

 till he collected one. This was exactly my own experience in Caji-ter County in 

 the winter of 1909. Until stronger evidence is jiresented, the case of the Wood 

 house Jay must be considered not jjroved. 



Corvus cryptoleucus Couch 

 White-necked Raven 

 One seen in Custer County, September 14, 1902 (Cameron, 1907, p. .393). 



