VIREONIDJE.--XXXT. 75 



In all the families of Passeres, where the existence of 

 nine primaries 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.&quot; 



* Wings long and pointed, i or more longer than the tail ; first 



primary very small or apparently wanting, less than length 

 of second. VIKEOSYLVIA, 1. 



t 



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

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

 stout . . . VIKEO, 2. 



/. ViREOSYLVIA, Bonaparte. LONG - WINGED VIREOS. 

 &amp;lt; Vireo, Vieillot. 



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



commissure straight and culmen relatively so; no wing bars 

 nor conspicuous orbital ring ; feet weak. ( Vireosylma ) 

 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. 6; W. 3; T. 2%. &quot;E. U. S., very abundant in 

 woodland; an energetic songster. 



2. V. phUadelphica, 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. 



3. /. gilva, (Vieill.) Cass. WARBLING VIREO. Colors 

 exactly as in the preceding, but the spurious quill 

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

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



