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University of California P^Mioatioixs in Zoology [Vol. 24 



mile along a broad, gravelly, rock-strewn wash. Half a mile to 

 the northward, a branch of the Stikine nearly as wide as the main 

 stream enters from the east. This branch is the outlet of a slough 

 that begins some miles farther north and passes behind a series of 

 islands. The Jackson ranch thus occupies a peninsula between the 

 creek and the slough, a low-lying flood plain resulting from the deposits 

 of the creek. 



Fig. G 



Fig. H 



Fig. G. Poplar woods along shore Of Sawmill Lake, near Telegraph Creek. 

 Poplars grow quite densely and sometimes in nearly pure stands, though there 

 is often an admixture of willow. Bird species that particularly frequent this 

 type of woods are the ruffed grouse, northern flicker, western warbling vireo, 

 yellow warbler, Tolmie warbler, American redstart, and olive-backed thrush. 

 Photograph taken June 19, 1919. 



Fig. H. The spruce woods of the middle altitudes on the mountain sides 

 are made up of large sized trees and occupy a well defined area above an alti- 

 tude of about 1500 feet. In the woods here shown we saw the goshawk, western 

 winter wren, short-tailed chickadee, ruby-crowned kinglet, Alaska hermit thrush, 

 and northern varied thrush. At the upper edge of the timber the Fleming 

 grouse was seen. Photograph taken on mountain above Doch-da-on Creek, July 

 23, 1919. 



On the east side of the river the mountains lie back a mile or more 

 from the stream, rising by alternate stretches of rather gentle slopes 

 and much steeper pitches, to ridges far above timber line, probably 

 4000 feet altitude and higher. On the west side of the Stikine, just 



