162. 



PACIFIC COAST AVIFAUNA 



No. 14 



The nest lias been found in the Big Horn Mountains, containing six yoimg 

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

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

 1888b, p. 108). Near Homestake, Jefferson County, three nests were discovered 

 in late June, 1910. One contained five young, which flew when the nest w^as 

 opened, June 26. In another, discovered June 21, the young left June 25 or 

 2(>. This second nest was in the same stump with a nest of the Red-naped Sap- 

 sucker, somewhat higher up in the stump and on the opposite side (Saunders, 

 IDJOd, p. 200). 



mm 



Fig. 33. Mountain Chickadee ap- 

 proaching NEST WITH I''OOD. PIPE- 

 STONE Creek, Jefferson County; 

 June 25, 1910. 



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



IIlJDSONJAiN CjUCKADEE 



A rare permanent resident of the mountains of northwestern Montana on 

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

 Grinnell (Rhoads, 1898, p. 332). A i)air with six young out of the nest seen 

 on the Teton River, August 1, 1911 (Saunders, 1914:a, p. 14:^). Two seen on 

 S[)otted Bear Mountain. South Fork of the Flathead River, in the summer oi 

 1915 (Betts. 1916, p. 163). 



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



ClIEHTNTJT-BACKED ("lIICKADEE 



A permanent resident of northwestern Montana, west of the continental 

 divide. Reported from the CoCui' d'Alene Mountains in 1863 (Cooper, 1869a, 

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

 1916c, p. 86). Seen at Lake IMacDonald, Glacier National Park, August 8, 1915. 

 Several seen at Coalbank, South Fork of the Flath(>ad Riv(>r. in the summer of 



