May, 1914 
BIRDS OF NORTIIERX MONTANA 
139 
ill the mountains, nesting in willow thickets along streams in the Canadian 
zone. Migration date: May 30, 1912, on Dupayer Creek. 
Passerella iliaca iliaca. Fox Sparrow. I observed a bird that was evi- 
dently of this subspecies in Hannan Gulch on the Sun River, October 18, 1911. 
The bird was in a dense aspen thicket and approached to within three or four 
feet of me. 
Passerella iliaca scMstacea. Slate-colored Fox Sparrow. Rare summer 
resident in the mountains, nesting in dense willow thickets along streams. 
This is evidently close to the northern limit of the breeding range on this side 
of the continental divide. I observed the species most frequently on the Sun 
River and on Willow Creek, in northern Lewis and Clark County. 
Pipilo maculatus arcticus. Arctic Towhee. Common summer resident of 
Fig. 46. Nest and eggs of Western Meadowlark. 
willow thickets on the prairies. Migration date : May 12, 1912. 
Zamelodia melanocephala. Black-headed Grosbeak. Common summer 
resident of willow thickets on the prairies. Begins nesting the middle of June. 
Young are on the wing the latter half of July. Migration date: June 7, 1912. 
(See fig. 48.) 
Passerina amoena. Lazuli Bunting. Summer resident. Not common, 
but most frequent along the foothills of the mountains in the southern part of 
the region. 
Galamospiza melanocorys. Lark Bunting. Summer resident on the prai- 
ries. Bare during my stay, but information indicates that here as well as 
elsewhere in Montana, these birds were very abundant in the year 1907. 
