98 



KEY AND DESCRIPTION 



1. Black-whiskered Vireo (623. Vireo ccd\dris barbdtulus). — 

 A species found in southern Florida, West Indies, and south in 

 winter to Central America. It is very much like the next 

 species, but has a narrow dusky streak extending from the bill, 

 below the eyes, along the side of the throat. 



Length, 5^ ; wing, 3J (3-3 J) ; tail, 2^ ; culmen, f . 



2. Red-eyed Vireo (624. Vlr£o oliv<\ceus). — A very common, 

 small, olive-green-l)acked, white-bellied vireo, with a black-mar- 

 gined slaty-gray crown, white line over the eye, and no wing 

 bars. The dark border to the crown gives emphasis to the 



white line over its 

 red eye. This com- 

 mon inhabitant of 

 trees has been called 

 the preacher, because 

 of its tireless singing. 

 In the words of Wil- 

 son Flagg, "We might 

 suppose him to be re- 

 peating moderately, 

 with a pause between 

 each sentence, 'You see it — you know it — do you hear me? 

 — do you believe it ? ' All these strains are delivered with 

 the rising inflection at the close, and with a pause, as if wait- 

 ing for an answer." 



Length, G\ ; wing, 3J (3-3|) ; tail, 2\ ; tarsus, ] ; culmen, f. North 

 America, from Utah eastward ; breeding from the Gulf States to Hudson 

 Bay, and wintering from Florida to South America. 



3. Yellow-green Vireo (625. Vh'eo^flavovln'dis). — A vireo of 

 western Texas and southward to Peru ; very much like the last 

 species, but with the under parts, especially the sides, flanks, 

 and under tail coverts, much more brightly yellow. 



Length, G\ ; wing, 3 (2}-3|) ; tail, 2^; culmen, f. 



4. Philadelphia Vireo (626. Vireo pJiiladcHphfcus). — A small, 

 light, olive-greeu-backed, grayish-crowned vireo with all luider 



Red-eyed Vireo 



