viREos 473 



Family VIREONID^. Vireos. 



Key to the species of VIREONID.E. 



A. No bars on wing. 



1. Entire under parts pale greenish yellow. Philadelphia Vireo. 



2. Under parts white. 



§. Crown slaty gray, bordered at sides by blackish. Red-eyed Vireo. 

 §§. Crown ashy olive green and not bordered at sides by blackish. 

 Warbling Vireo. 



B. Wings distinctly barred. 



1. Line from eye to bill and eye ring white ; head bluish gray. Blue- 



headed Vireo. 



2. Line from eye to bill and eye ring not white. 



§. Under parts and throat yellow. Yellow-throated Vireo. 

 §§. Under parts white or whitish. White-eyed Vireo. (Hypothetical 

 List). 



Genus VIREO Vieillot. 



Subgenus VIREOSYLVA. Bonaparte. 



624. Vireo olivcweus (Linn.). Red-eyed Vireo; Red-eyed 

 Greenlet; Preacher; Politician. 



Plumage of adults : crown slaty gray, bordered at sides by blackish ; white 

 line over eye ; above olive green ; below white ; eyes red. Immature plum- 

 age : very similar to adults, the eyes however are brown instead of red. 

 Wing 3.20 ; tail 2.25 ; culmen 0.52. 



Geog. Dist. — Eastern North America west to British Columbia ; breeding 

 from the Gulf States to Labrador, Manitoba and even Arctic regions ; winter- 

 ing from Florida to Central and South America. 



County Records. — Androscoggin; common summer resident, (Johnson). 

 Aroostook ; common summer resident, (Knight) ; common at Fort Fairfield, 

 (Batchelder, B. N. 0. C. 7, p. 111). Cumberland; common summer resident, 

 (Mead). Franklin ; common summer resident, (Swain). Hancock; common 

 summer resident, (Knight). Kennebec ; common summer resident, (Gardiner 

 Branch). Knox; summer, (Rackliff). Oxford; breeds commonly. (Nash). 

 Penobscot; common summer resident, (Knight). Piscataquis; common, 

 breeds, (Homer). Sagadahoc ; common summer resident, (Spinney). Som- 

 erset; common smnmer resident, (Morrell). Waldo; common summer resi- 

 dent, (Knight). Washington; very abundant summer resident, (Boardman). 

 York; common summer resident, (Adams). 



Occasionally arriving as early as May tenth, the species 

 more often arrives in numbers about the nineteenth and from 



