OF EASTERN PENNSYLVANIA. 149 



It was supposed by Mr. Turnbull to be a summer 

 resident in Pennsylvania, which is probably not 

 the fact. 



Oporornis formosus, Baird. 



The Kentucky Warbler, though an abundant 

 species in the Southern and Southwestern States, 

 is very rare in Eastern Pennsylvania. It is never 

 gregarious, but is always observed alone. It 

 makes its appearance during the latter part of 

 April, or the beginning of May, and is always to 

 be found in ravines, or on the outskirts of low 

 woods bordering upon the banks of streams of 

 water. Its habits are eminently terrestrial; but 

 it is occasionally found upon low bushes, but has 

 never been known to visit the tall tree-tops. It 

 is naturally quiet and reserved. Whilst feeding 

 it reminds us very forcibly of the Seiuri, especially 

 noveboracensis and hidoviciamis, having the tilting 

 movement of the body, and horizontal perching 

 attitude so characteristic of these birds. 



During its brief stay of a week, it does not utter 

 a single note to remind us of its presence. Its 

 sole business seems to be the procurement of food. 

 It is not until it has reached its breeding-quarters, 

 and is in pursuit of a partner, that it essays the 

 power of song. Its usual note, according to Mr. 

 Ridgway, "is a sharp tship almost precisely like that 

 of the Pewee (Say ornis fits cus], uttered as the bird 

 perches on a twig near the ground, continually til- 

 ting its body, or is changed into a sharp rapid 



