286 NORTH AMERICAN BIRDS EGGS. 



628. Yellow-throated Vireo. Vireo flavifrons. 



Range. United States east of the Plains, breeding from the the Gulf to Mani- 

 toba and New Brunswick. 



This handsome bird is wholly unlike any others of the 



Vireos, having a bright yellow throat and breast; the upper 



j% " parts are greenish and the wings and tail gray, the latter with 



I 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 



[Creamy white ] are frequently 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. 



629. Blue-headed Vireo. Solitary Vireo. Vireo solitarius. 



Range. Eastern United States, breeding from southern New England and the 

 northern states north to Hudson Bay; winters in the Gulf States and south- 

 ward. 



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. I They build firm, pensile, basket-like 

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

 grasses and hair, suspended from iorks, usually at low 

 elevation, and often in pine or fir trees (of some twenty nests 

 that I have found in New England all have been in low [White.] 

 branches of conifers). Their three or four white eggs are specked with reddish 

 brown. Sixe .80 x .60. 

 629a. Cassin Vireo. V. s. cassinii. 



Range. United States west of the Rockies; north to British Columbia. 



Similar to the last but with the back grayish. The nests and eggs of this 

 form are in all particulars the same as those of the eastern Solitary Vireo. 

 629b. Plumbeous Vireo. V. s. plumbeus. 



Range. Rocky Mountain region, breeding from Mexico to Dakota and 

 Wyoming. 



Like the Blue-headed Vireo but with the yellowish wholly replaced by leaden 

 gray. The nesting habits of this common variety are the same as those of the 

 last and the eggs are indistinguishable in all respects. 

 629c. Mountain Solitary Vireo. V. s. alticola. 



Range. Mountains of Carolina and Georgia; winters in Florida. 



Said to be larger and darker than solitarius proper. From all accounts, the 

 habits, nests or eggs of this species differ in no wise from many of those of the 

 northern Solitary Vireo, whose nests show great variations in size and material. 

 629d. St, Lucas Solitary Vireo. V. s. lucasanus. 



Range. Southern Lower California. 



Similar to cassini but with the flanks more yellow. Their nesting habits or 

 eggs will not differ from the others. 



630. Black-capped Vireo. Vireo atricapillus. 



Range. Central Texas north to Kansas; winters in Mexico. 



This peculiar Vireo has a black crown and sides of head, 

 broken by a white eye ring and loral stripe; upper parts greenish, 

 below white. They appear to be fairly common in certain 

 localities of their restricted range, and nest at low elevations in 

 mesquites or oaks, placing the nests in forks the same as other 

 Vireos; they are of the ordinary Vireo architecture, lined with 

 grasses. The three or four eggs are pure white, unmarked. Size 

 .70 x .50. Data.-Comal Co., Texas, May 21, 1888. 4 eggs. Nest 



located in a scrub Spanish oak, 5 feet from the ground. Collector, G. B. 



Benners (Crandall collection). 



