100 



KEY AND DESCRIPTION 



Length, 5^; wing, 2} (2|-3); tail, 2| ; tarsus, ] ; culmen, |. North 

 America, from the Plains eastward ; breeding from Xew England to Hud- 

 son Bay, and wintering in Mexico to Central America. The Mountain 



Solitary Vireo (629^ V. 

 s. alticiila), of the higher 

 southern Alleglianies, 

 is a similar bird but 

 larger, and with the en- 

 tire upper parts a nearly 

 uniform dark lead-color 

 with almost no tinge of 

 green. Wing, 3^ (3-3}) ; 

 tail, 2',. 



8. Black-capped Vi- 

 reo (630. Vireo atri- 

 cap illu s). — A sm al 1 , 



rare, Texan, black-headed, olive-green-backed, white-bellied 



vireo, with olive-shaded sides. 



Blue-headed Vireo 



Length, A\; wing, 2}; tail, 2; tarsus, \\ 

 western Texas, north to southwestern Kansas. 



culmen, J. Central and 



9. White-eyed Vireo (0.31. Vireo noveboracinsis). — A small, 

 olive-groen-backed, white-V)ellied vireo, with much yellowish on 

 wings, tail, and sides 

 of head, including two 

 distinct wing bars. A 

 ring around the eye, 

 and line from eye to 

 bill yellow. This is 

 a saucy inhabitant 

 of underbrush, with 

 mocking bird powers, 

 which it uses in in- 

 tricate *' medleys " of 

 bird notes. 



White-eyed Vireo 



Length, 5; wing, 21; tail, 2; tarsus, |; culmen, \. United States 

 from the Rocky Mountains eastward ; breeding north to southern New 

 England and Minnesota, and wintering from Florida as far south as 

 Central America. 



