Plate XXIIl 



Vig. 42. 



Loxg-Tailed Chickadee. 



Bison Keservnir, Teller Countv, 



R. W.. Photo. 



Colo. 



Fig. 43- E. R. W., Photo. 



Mountain Chickadee. 

 Bison Reservoir, Teller County, Colo. 



