268 



VIREOS. 



3. PHILADELPHIA YIREO, Y. PHILADELPHIA. 5.00; 

 grayer than 1 on back ; lines on head distinct ; strongly 

 tinged with yellow beneath. Breeds from northern N. E. 

 northward into the British Provinces ; winters in Central 

 America; south in Sep. and Oct.; north in May. Yery rare 

 east of the Connecticut River and Alleghanies Song, simi- 

 lar to 1. 



4. WARBLING YIREO, Y. GILVA, 5.40; the grayest 

 of our vireos, there being but little difference between the 



Fig. 356. color of head and back ; no 



black on sides of head, but 

 there is a slight whitish line 

 over eye ; white beneath 

 slightly tinged with yellow, 

 fig. 356 ; iris, brown. Breeds 

 in eastern N. A. from Fla. 

 north into the British Prov- 



CC, P, a, 4. inces ; winters in Mexico ; 



south in Sep. ; north in April. Frequents open groves or or- 

 namental trees in streets. Song, a continuous warble con- 

 sisting of about six notes uttered at rather wide intervals. 



b. Banded Vireos. 

 Laiiivireo. 



Bill, somewhat 

 stouter than in a, wing 

 bands, present, white; 

 more or less yellow be- 

 neath. 



1. YELLOW- 

 THROATED YIREO, L. 

 FLAVIFEONS. 6.00 ; 

 greenish above and on 

 sides of head; line over 

 eye, throat, and breast, 



Fig. 357. 



CC, P, b, 1. 



lemon-yellow; remaining under parts, white, fig. 357. Breeds 

 in eastern N. A. from northern Fla. north to the British 



