

32 THE FAUNA OF MONTANA TERRITORY. 













of snow’ on the Cascade Mountains, which probably drove . 
them down. E j 
Eastern BLUEBIRD ( Sialia sialis). I noticed this species 
at the mouth of Milk river, and as this is within sight of the 
first range of mountains, their base may be considered as its 
western limit. I saw it also near Fort Laramie in 1857. 4 
ARCTIC BLUEBIRD (S. arctica). I saw a few of this species 3 
on the eastern slope of the Rocky Mountains only, and at a J 1 
high elevation. I have no doubt, however, of its also fre- 4 
quenting some parts of the western slopes, and. Nuttall says © 
that he saw it at Fort Vancouver in the winter. It is more 3 
shy and silent than either of the other species. 5 
Western BLUEBIRD (S. Mexicana). None of the West- a 
ern Bluebird were seen until reaching Spokan river, north —.— 
and west of which it is found wherever there are trees, shun- 
ning only the dense forest. : P 
Rupy-crownep Wren (Regulus calendula) and Gouben- 1 
CROWNED WREN (RH. satrapa). Seen in small nnmbers E 1 
throughout the Rocky Mountains. : 8 
.WarER OuzzL (Hydrobata Mexicana). I was surprised 
to find this Ouzel scarce in the Rocky Mountains, having 
seen none myself, and only one being observed by Capt. 
Floyd Jones, whose attention was attracted by its peculiar ~ 
habits. This was just east of the Cour d’Alefie Pass. E | 
Maceruurvray’s WARBLER (Geothlypis Macgillivrayi). — 
Young birds and old ones in fall plumage were common all , 
across the Rocky Mountains, even near the summits, but I D 
saw none in the dense forests of the Coeur d'Alene Range, 3 
which they seem to avoid as they do those of the Coast a 
_ Range in Washington Territory. 4 
_ Water TunusH (Seiurus Noveboracensis? No. 70). Hell 
Gate river, August 24th.* Though smaller than the average, 
this specimen agrees closely with some in Baird's Report from 
Pennsylvania and Florida. I found it pretty common in the 


*Length,5.75; extent,925; wing, 2.87; Iris and bill, brown; lower mandible and feet - 

