16 



BIEDS OF EAST PENNSYLVANIA. 



Tit-Lark. 



Creeping Warbler. . 



Blue Yellow - backed 

 Warbler. 



Maryland YeUow-throat 

 Mourning Warbler. 



Connecticut Warbler. 



Kentucky Warbler. . 



YeUow-breasted Chat. 

 Worm-eating Warbler. 



Blue-winged YeUow 

 Warbler. 



Golden-winged Warbler, 



Anthus Ludovicianiis. PrpiT. Beown 

 Lark. CommoD. It arrives from 

 the north in October, and departs in 

 Ajiril, but is more frequent in the 

 Autumn and Spring migrations. (W.) 

 Mniotilta varia. Black and White 

 Creeper. Plentiful from the mid- 

 dle of April to the beginning of 

 October. (S.) 



Panda Americana. Blue Yellow- 

 Back. Common from the end of 

 April to October. (S.) 

 . Geothlypis tnchas. Abundant from 

 the end of April to the beginning 

 of September. (S.) 



Geothlypis Philadelphia. Eare, and 

 excessively so in Autumn. It arrives 

 in the middle of May on its way 

 north. (S. & A) 



Oporornis agilis. Bather rare. This 

 species is very seldom met with 

 in Spring, but is, however, more 

 frequent in Autumn, appearing late 

 in August. (S. & A) 



Oporornis formosus. A southern 

 species, and rather scarce. It arrives 

 late in April. (S.) 



Icteria virens. Common, coming early 

 in May and leaving in September. (S.) 



Helmitherus vermivorus. Bather rare, 

 arriving in the middle of May, and 

 departing in the end of September. 

 (S.) 



Helmintkophaga solitaria. Somewhat 

 rare, arriving in the middle of May. 

 (S.) 



Helminthophaga chrysoptera. Bather 

 rare. It appears about tlie end of 

 April. (S. & A.) 



