214 PASSERES: Perching Birds 



LEAST VIREO 



(633a. Vireo belli pusillus) 4^ in. 



Olive-gray above; silky white below. No line over eye dis- 

 tinguishes from Warbling Vireo, which it somewhat resembles. 

 Song is distinctive: A repetition of four or five notes, usually 

 with rising inflection, followed by a series with falling inflection. 

 " What's that you say?" "I don't hear you." 



GRAY VIREO 



(634. Vireo vicinior) 5f in. 



Dull gray above, including sides of head; gray- white below; 

 eye-ring and lores white, not conspicuous in the surrounding 

 gray. Best distinguished from other Vireos by its habitat. 



FAMILY WOOD WARBLERS 



Small (except one species); mostly bright-colored birds; vari- 

 ously marked; some nearly all yellow; only two with no yellow. 



BLACK AND WHITE WARBLER 



(636. Mniotilta varia) 5 in. 



Male: Strongly black-and-white-streaked above and below, 

 except narrow area on breast and belly; a sharp white line on 

 middle of crown (Black-throated Gray has crown all black); 

 throat nearly solid black. 



Female: Similar, but throat white. 



In feeding often climbs about trunk and branches in an 

 almost Creeper-like fashion, which in itself is distinctive. 



LUCY WARBLER 



(643. Vermivora luciae) 4 in. 



A very small warbler, ashy-gray above, white below; rump and 

 crown chestnut, the latter marking mostly concealed and the 

 former rarely conspicuous; both much reduced in female, the 

 crown-patch sometimes absent. 



Compare Least Vireo, which the Lucy Warbler somewhat re- 

 sembles in color. 



