VIEEONID.E — THE VIREOS. 181 



a. PilPum bordered along each side by a dusky line. Wing more than 3 inches. 



1. V. oUvacea. Above olive-green, the pileum slate-gray; beneath white medially 

 the sides olive-greenish; erissum scarcely tinged with yellow; inner edges of 

 .rjuills white. 



2. V. flavoviridis.* Above yellowish olive-green, the pileum ash-gray: beneath 

 white medially, bright greenisli olive-yellow laterally, the erissum. lining of 

 wings, and inner edges of nuills light yellow. 



b. Pileum without dusky border; wing less than three inches. 



3. V, philadelphica. Above grayish green the pileum gray; beneath sulphur-yel- 

 low, more whitish on the chin and abdomen. 



B. First primary well developed, and exposed (.50 of an inch, or more. long). Wing 

 less than 3 inches. 



4. V. ^Iva. Above olive-gray, the crown not conspicuously different; beneath 

 whitish, the sides tinged with dull buffy. 



a gUva. Wing, 2.65-2.90; tail, 2.20-2.50; bill from nostril, .30-.3.5. Eastern 

 United States. 



/3 steainsoni. Wing. 2.70-3.00; tail. 2.20-2.60; bill from nostril, .25-28. Bill 

 more depressed, and colors grayer, with less of a buffy east on sides, etc. 

 Western United States. 



Vireo olivaceus (Linn. 



BED-EYED VIEEO. 



Popular synonyms. Eed-eyed Greenlet; Pied-eyed Flycatcher. 



Jfuscicapa olivacea LiNN. S. N. ed. 12. i. 1766. 327 [part).— WiLS. Am. Orn. ii, 1810. .55. pi. 10 

 flg.3. 

 Vireo olivaceous Viexll.— Nutt. Man. i. 1832. 312.— Aud. Orn. Biog. ii. 18:34. 287, pi. 150; 

 Synop. 1839, 162; B. Am. iv, 1842, 155, pi. 243.— Baied, B. N. Am. 1858, 331; Cat. N. Am. 

 B. 1859, No. 210.— CouES. Key. 1872, 120; Check List. 1873, No. 122; 2d ed. 1882, No. 170; 

 B. N. W. 1874, 96; B. Col. Val. 1878, 495. 



Vireoaylva olivacea HF.— Vireosylvia olivacea Baied, Review, 1866. 333.— B. B. & R. 

 Hist. N. Am. B. i, 1874, 363. pi. 17. fig. 2. 



Hab. Eastern North America, north to "Fur Countries;" west to Rocky Mountains, or 

 even beyond, especially along northern border of United States; winters from Florida 

 and Cuba to Trinidad and Colombia, but not in West Indies, except Cuba; accidental in 

 Greenland and even in England. 



"Sp. Chae. (No. 1,418 male, Carlisle, Penn.. May. 1844.) Upper parts olive-green. Top 

 of head from bill to nape, ash-eolor. A white line from nostrils above and beyond the 

 eye, bordered above by a dusky line forming the edge of the ashy cap, and below by a 

 similar, perhaps paler, loral and post-ocular cheek-stripe. Beneath, including tibije, 

 white, with perhaps a tinge of olivaceous ash across the breast; the sides of the neck 

 like the back; sides of the body with a faint wash of olive. Axillars and erissum faintly 



* This is a Central American and Mexican species, reaching its normal northern limit 

 In the lower Rio Grande valley in Texas. It has been taken however, on the Canadian 

 shore of the Lower St. Lawrence, and may possibly occur as a straggler in Illinois. 



