THE BIRD BOOK 



Creamy white 



ijitcd Vireo 



(J27a. Western Warbling Viheo. I'ireo- 

 sylva gilva swainsoni. 



Range. — Western United States, breeding 

 from Mexico to British Columbia. 



Tliis species is like the last but said to be 

 a trifle smaller and paler color. Its nestiag 

 habits and eggs are precisely like those of 

 the eastern form. 



628. Yellow-throated Viheo. Lanivireo 

 fiavifrons. 

 Range. — United States east 

 of the Plains, breeding from 

 the Gulf to Manitoba and 

 New Brunswick. 



This handsome bird is 

 wholly unlike any others of 

 the Vireos, having a bright 

 yellow throat and breast; the 

 upper parts are greenish and the wings and 

 tail gray, the latter with two white bars. They 

 are fairly common breeding birds in northern 

 United States, placing their handsome basket- 

 like structures in forks of branches and at any 

 elevation from the ground; the nests are like those of the preceding Vireos but 

 are freciuently adorned on the outside with lichens, thereby adding materially 

 to their natural beauty. The four or five eggs are pinkish or creamy white, 

 speckled about the large end with reddish brown. Size .80 x .60. 



(i^Jj- Blue-headed Vireo. Lanivireo solitarius solitarius. 



Range. — Eastern United States, breeding from southern 

 New England and the northern states north to Hudson Bay; 

 winters in the Gulf States and southward. 



A beautiful Vireo with a slaty blue crown and nape, greenish 

 back, white wing bars and underparts, the flanks being washed 

 with greenish yellow; a conspicuous mark is the white eye 

 ring and loral spot. They build firm, pensile, basket-like 

 ^viiite nests of strips of birch and grapevine bark, lined with fine 



grasses and hair, suspended from forks, usualh 



at low elevation and often in pine or fir treeo 



(of some twenty nests that I have found in 



New England all have been in low branches oi 



conifers). Their three or four white eggs are 



specked with reddish brown. Size .80 x .60. 



()'2f)a. Cassins Viheo. Ldiiivireo .solitiiriits 

 cassini. 



Range.- — ^United States west of the. Rockies; 

 north to British Columbia. 



Similar to the last but with the back grayish. 



(i'^^b. Plumbeous Vireo. Lanivireo .soli- 

 Range. — Rocky Mountain region, l)reeding 



from Mexico to Dakota and Wyoming. 



Like the Blue-headed Vireo but with the 



yellowish wholly replaced by leaden gray. 



282 iL,- 



Blue-headed Vireo 



