Birds of Indiana. 1041 



158. Genus DENDROICA Gray. 



a^. Bill slender, very acute; gonys slightly concave near tip; notch wanting or 

 very indistinct. Subgenus Perissoglossa Baird. D. tigrina (Gmel.). _ 264 

 a'^. Bill conical ; gonys convex; notch distinct. 



6^. Tail feathers edged with yellow; plumage chiefly yellow. 



D. aestiva (Gmel.). 265 

 b^. Tail feathers blotched with white. 



c^. Primaries with white blotch near bases; no wing bars. 



D. cserulescens (Gmel.). 266 

 c^. Primaries without white blotch. 

 d^. Wing bars, if present, not white. 



e^. White below; crown and wing patch more or less yellow. 



D. pennsylvanica (Linn.). 270 

 e^. Yellow below. 

 /^. Sides reddish streaked; crown chestnut. 



D. palmarum (Gmel.). 278 

 /2. Sides black streaked. 



7I. Back olive with reddish spots. D. discolor (Vieill.). 279 



7-. Back ashy. D. kirtlandi Baird. 276 



d*. Wing bars or wing patch white. 

 h^. Rump yellow. 



i'. Crown clear ash; yellow and streaked below. 



D. maculosa (Gmel.). 268 

 i^. Crown with yellow spot; white and streaked below. 



D. coronata (Linn.). 267 

 /(-. Rump not yellow. 



j'^. No distinct yellow anywhere. 



A'^. Crown, blue or greenish, like the back. 



D. rara (Wils.). 269 

 h'^. Crown not blue or greenish. 

 /*. Crown black, much streaked. 



D. striata (Forst.). 272 

 /-. Crown and throat chestnut; bufiV below. 



D. castanea (Wils.). 271 

 /-. More or less yellow or orange. 



m^. Crown with orange or yellow spot; throat orange or 

 yellow. D. blackburniee ((imel.). 273 



m-. Crown bluish or yellowish ; not as above. 



n^. Throat black (sometimes obscured by yellow tips 

 to feathers) ; outer tail feather white edged. 



D. virens (Gmel.). 275 

 «-. Throat yellow. 



0^. Back blue gray ; cheeks black. 



D. dominica albilora Ridgw. 274 

 0^. Back yellowish olive; cheeks the same color. 



D. vigorsii (.\ud.). 277 



66— Geol. 



