162 



PACIFIC COAST AVIFAUNA 



The nest has been found in the Big Horn Mountains, containing six young 

 and an addled egg on June 18, 1880 (Merrill, 1881, p. 204) ; at Gold Run, in the 

 Belt Mountains, a nest containing six spotted eggs, June 23, 1887 (Williams, 

 IHSSb, p. 108). Near Homestake, Jefferson County, three nests were discovered 

 ui late June, lOlO. One contained five young, which flew when the nest was 

 opened, June 2ti. In another, discovered June 21, the young left June 25 or 

 20. Tliis second nest was in tiie same stump with a nest of the Red-naped Sap- 

 sucker, somewhat liiglier u]) in the stump and on the opposite side (Saunders, 

 IDlOd, p. 200). 



Fig. 33. MouxTAix CnicKAUEE ap- 

 proaching KEST WITH FOOD. PlPE- 

 STOXF. Creek, Jefferson County; 

 June 25, 1910. 



316. Penthestes hudsonicus hudsonicus (J. R. Forster) 



lli'DsoNiAN Chickadee 

 A rare permanent resident of the mountains of northwestern JMontana on 

 both sides of the continental divide. Taken at St. Mary's Lake in 1888 by 

 Grinnell (Rhoads, 1893, p. 332). A pair with six young out of the nest seen 

 on the Teton River, August 1. 1911 (Saunders, 1914a, p. 143). Two seen on 

 Spotted Bear Mountain, South Fork of tlie Flathead River, in the summer of 

 1915 (Betts, 1916, p. 163). 



317. Penthestes rufescens rufescens (J. K. Townsend) 



ClIESTNlTT-BACKED ClIICKADEE 



A i^ermanent resident of northwestern Montana, west of the continental 

 divide. Reported from the Coeur d'Alene Mountains in 1863 (Cooper, 18G9a, 

 p. 75). Common at Flathead Lake in 1915, and one secured June 30 (Saunders, 

 I916e, p. 86). Seen at Lake MaeDonald, Glacier National Park, Augu.st 8, 1915. 

 Several .seen at Coalliank. South Fork of the Flathead River, in the summer of 



