WyYoMING Birps. 39 
The Grouse and Sage Hens are important game birds of the 
State, 
but they are decreasing in numbers. They feed during the 
summer upon grasshoppers, caterpillars, and berries of various 
kinds. 
During the winter their diet is largely vegetable, including 
the buds of trees. In this way they may do considerable damage. 
The food of the Sage Hens is about the same. 
REFERENCES: 
1. 
RYN 
our. 
297b. 
299. 
300a. 
300b. 
304. 
308a. 
“Birds in Their Relation to Man,” Weed and Dearborn, 
pp. 224-227. 
“Useful Birds and Their Protection,” Forbush, pp. 267-274. 
Year Book of the Department of Agriculture, 1907, p. 172. 
“North American Fauna,” No. 27, pp. 340-342. 
Dendragapus obscurus obscurus: Dusky Grouse. 
Common resident in the mountains of the southern portion 
of the state. 
Dendragapus obscurus richardsoni: Richardson’s Grouse. 
In the northern portion of the state this species replaces 
obscurus, having been found by Jewett, Metz and Black- 
welder in both the Tetons and Big Horns. 
Canachites franklini: Franklin’s Grouse. 
Our only record of this is from Blackwelder, who reports 
it from the Teton region. 
Bonasa umbellus togata: Canada Ruffed Grouse. 
Knight recorded it from northeastern Wyoming. Jewett 
reports it from Star Valley. Warren, Richard and Pea- 
body also report it. 
Bonasa umbellus umbelloides: Gray Ruffed Grouse. 
Fairly common resident in northwestern Wyoming. 
Lagopus leucurus leucurus: White-tailed Ptarmigan. 
Probably a common resident in all the alpine regions of 
the state, but recorded only by Walker in this survey. 
Knight reported it as a common resident in alpine districts. 
Pedioecetes phasianellus columbianus: Columbian Sharp- 
tailed Grouse. 
The early records were very unsatisfactory, but now it is 
reported from almost all the observers in the northern por- 
tion of the state. Probably rather uncommon. 
