82 PACIFIC COAST AVIFAUNA No. 14 



tinental divide. There are only a few records. One taken at ''Silvei-. Missoula 

 County," June 25, 1891, by C. P. Streator (Bendire, 1895, p. IS'-)). At present 

 the only place in the state named Silver is in Lewis and Clark County, north of 

 Helena. If this was formerly in Missoula County, and is the locality referred to, 

 it is especially interesting because east of the divide. One seen at Yellow Bay, 

 Flathead Lake, August 25, 1914. Swifts were also seen at Somers by H. P. 

 Stanford (Saunders, 1915b, p. 114). I noted this species again, in the same 

 place July 25, 1915. Other records are : Missoula, July 25, 1915, and Seeley 

 Lake, August 20, 1915 (Kittredge, :\1S) ; South Fork of Flathead River (Betts, 

 1916, p. 162), identification questionable; Kalispell, May 30, 1916, and Wood's 

 Bay, Flathead Lake, August 12, 1916 (Sloanaker, MS) ; seen at Many Glacier 

 Hotel, Glacier Park, in midsummer {F. ^I. Bailey, 1918, p. 58). 



165. Aeronautes melanoleucus (Baird) 



White-throated Swift 

 A very rare or local summer resident, occurring in scattered localities over 

 the state, though the majority of records are in the eastern half. Seen June 22, 

 1860, between Forts Union and Benton (Cooper, 1869b, p. 296) ; Belt River Can- 

 yon, feeding young in crevices of the rock in July, 1881 (Williams, 1882c, p. 

 122) ; seen by Bowman on the Powder River (Cameron, 1907, p. 390) ; Billings, 

 August 12, 1900, and between Billings and Miles City, August 13, 1900 (Jone^ 

 and Dawson, 1900, p. 32) ; six seen at Corvallis, Bitterroot Valle3% May 19, 1911, 

 two. May 27. 3 911, and two. May 22, 1912 (Bailey, MS). At least twelve colo- 

 nies of these birds nest in the vicinity of Billings, in rim-rocks. A set of two 

 eggs was taken thirty miles below Billings on the Yellowstone, June 17, 1918. 

 The set was evidently complete, as the two eggs had remained in the nest several 

 days without an additional egg being added (Thomas, ^IS). 



166. Archilochus alexandri (Bourcier & Mulsant) 



Black-chinned Hummingbird 

 A rare summer resident of extreme northwestern Jlontana, west of the con- 

 tinental divide. Taken at Columbia Falls, May 27, 1893. by Williams (Bendire, 

 1895, p. l!)f)) ; two males seen at Stevensville, I\Liy 28, 1912 (Bailey, MS) ; seen 

 at Yellow Bay, Flathead Lake (Silloway, from an unpublished manuscript) ; 

 seen at Missoula, June 6 and July 17 (Kittredge, MS). These constitute th<} 

 only records. 



167. Selasphorus platycercus (Swaiiison) 



BuoAD-TAIIiED HUMMINGBIRD 



But two definite records of this si)ecies. One takcu by Lieut fuaut Colonel 

 Wirt Robinson in 1907 at Chico, Park County, according to information sent me 

 by Mr. :\1. P. Skinner. One taken at Cpper St. Mary's Lake, Glacier National 

 Park in 1895 by Bailey and Howell ( F. M. Bailey, 1!)1S. p. 58). This bird, liow- 

 ever, may be common in the southern part of the state. My recoi-d of tlie nesting 

 of this species in Gallatin County must remain doubtful (190i)b, p. 197, and 



