. VIREONIDJE.- -XXXI. 75 



In all the families of Passeres, where the existence of 

 nine prijnaries is supposed to be characteristic, I have 

 invariably found, as far as my observations have extend- 

 ed, that there were two of the small feathers referred to, 

 while in those of ten primaries but one would be 

 detected." 



*■ Wings long and pointed, for more longer Uiaii the tail; first 

 primary very small or apparently wanting, less than i lengtJi 



of second Vikeosylvia, 1. 



** Wings relatively short and rounded, not one. fourth longer 

 than the tail; first primary f or more length of second ; bill 

 stout ViREO, 2. 



/. //^£(?5KI //A Bonaparte. Long -Winged Vireos. 



< VireOf Vieillot. 



* Slender species, the bill slender, light horn color, pale below; 

 commissure straight and culmen relatively so; no wing bars 

 uor conspicuous orbital ring; feet weak. {Vireosylvia) 

 f Primaries apparent!}'' 9. 



1. /. olivacea, (L.) Bon. Red - Eyed Vireo. Green- 

 let. Olive green, crown ashy, edged on each side with 

 blackish; a white superciliary line, and below this a 

 dusky streak; white below, somewhat olive shaded; eyes 

 red; L. (>; W. 3^; T. 2|. E. U. S., very abundant in 

 v/oodland; an energetic songster. 



2. V. philadelphica, Cassin. Philadelphia Greenlet. 

 Dull olive green, becoming ashy on crown; no black 

 lines on head; a whitish superciliary line; below faintly 

 yellowish, fading to white on throat, etc.; L. 4f ; W. 2f ; 

 T. 2+. E. U. S., scarce. 



ff Primaries evidently 10. 



?). V. gilva, (Vieill.) Cass. Warbling Vireo. Colors 

 exactly as in the preceding, but the spurious quill 

 evident; L. 5^; W. 2f ; T. 2+. E. N. A., frequent; an 

 exquisite songster, nesting in tall trees in cities, etc. 



