BREEDING RANGE 

 WINTER RANGE 



Figure 23. — Distribution and migration of the red-eyed vireo. It is 

 evident that the red-eyed vireo has only recently invaded Washing- 

 ton by an extension of its breeding range almost due west from the 

 upper Missouri Valley. Like the bobolink, however (fig. 19), the 

 western breeders do not take the short cut south or southeast from 

 their nesting grounds, but migrate spring and fall along the route 

 traveled in making this extension. 



69 



