VIREOS 



Vireos are not confined to any particular 

 kind of woods. They seem to be everywhere. 

 If you go to the seashore they are there in the 

 thickets of manzanita and lodge-pole pine. 

 If you journey to the mountains you find 

 them filling the big woods with their song. 

 But they are most abundant in the valleys, 

 living in the heavy timber that covers the 

 hills, in the thickets of alder and vine maple 

 in the canyons or in the deep woods that skirt 

 old fields and quiet country roads. They are 

 common in parks where they build their 

 nests in dogwood and hazel along steep banks; 

 and they inhabit the trees and shrubbery of 

 vacant city lots, peering at you from the 

 overhanging limbs while searching the under- 

 side of leaves for tiny insects. 



Vireos are so nearly the color of the green- 

 ery in which they live that it is often diflScult 

 to see them, and since their plumage lacks 

 distinctive markings one must rely on the 

 song for identification unless one can observe 

 them at arm's length. 



. Cassin vireo, Lanivireo solitarius cas- 



sini. 5.'i5 



Distribution : Pacific Coast district of the 



United States and British Columbia, south 



to southern California, and east to Idaho, 



3 33 



