FAMILY VIKEONID^ai. — VIREOS. 



273 



Group 3. Wing, from 2.75 to 3.25 inches long. 



Bi4l, with small but distinct hook ; no streaks on back or breast ; 

 breast or throat, never spotted. 



First pritnary, li)ii<rer thau fourth; back aud rump, olive; crown, plumbeous 

 f>ray, or l)luisii ^ray; no dusky streak from base of bill on sides of throat; 

 underparts, white, tinged witli pale yellowish greeu ou sides of body. 



Red-eyed Vireo. 

 Vireo oUracius. 

 See No. 470. 



Similar to Viren nlivaceua, l)ut having a 

 dusky .streak or line extending from 

 ba>5e of lower mandible on side of 

 throat. 



Black-whiskered Vireo. 

 Vireo caUilris barbntuhis. 

 See No. 4G9. 



First primary, very short and narrow; crown and back, grayish olive; under- 

 parts, dull white, faintly tinged with ulive, ur yellowish ou sides; no white 

 wing bars. 



Warbling Vireo. 

 Vino gilvus. 

 See No. 473. 



