FIELD COLOB KEY xliii 



5'. Crown without red or orange patch. 

 6. With wing- bars. 



7. Conspicuous yellow ring around eye ; eye white. 

 Foimd in undergrowth. Song emphatic : " Who 

 are you, eh? ^\ . . p. 302. White-eyed Vireo. 



7'. No yellow ring around eye ; eye dark. Found by 

 streams in woods. Call, pe-ah-yuk' . 



p. 254. Acadian Flycatcher. 



6'. Without wing bars. 



8. White line over eye. 



Cap gray, bordered by blackish. 

 Song broken and in triplets. Common 

 everywhere in trees. '^ 



p. 120. Red-eyed Vireo. 



8'. No white line over eye. 



Head and back uniform olive-gray. ,^^«^^^ 

 Song a sweet flowing warble. Found \. -i? 

 high in village elms. \; 



p. 126. Warbling Vireo. 



B. GRAY OR BLUISH GRAY. 



1. Plumage distinctly marked with black. 

 2. Throat black. 



Cap black, back gray. Call, chick-a-dee. 



pp. 67, 71. Chickadees. 



2'. Throat not black. 

 3. Back bluish. 

 4. Top of head black ; seen on tree 

 trunks. 

 6. Under parts white ; no line on side 

 of head. Common resident from 

 Gulf states to Canada. 

 * p. 73. White-breasted Nuthatch. 



