OF EASTERN PENNSYLVANIA. 83 



gists, this Wren breeds in mountainous places. 

 Mr. Audubon in his rambles, never discovered 

 but a single nest; and this he found in a hollow 

 protuberance overgrown with mosses and lichens 

 which presented to the eye of a spectator, even at 

 a short distance, the semblance of an excrescence. 

 This nest was discovered in a dense forest in the 

 state of Pennsylvania. 



In the small valleys which nestle among the 

 hills of the Wissahickon, paired individuals have 

 been seen late in the spring, when most of our 

 resident species are engaged in niclification or 

 incubation; from which we have been led to infer 

 that a few individuals possibly remain to breed; 

 but we have never discovered the slightest evi- 

 dence of a nest. 



A jiest of this bird met with by Mr. William F. 

 Hall in the central-eastern portion of Maine, is 

 described as being "built in an unoccupied log-hut 

 among fir-leaves and mosses, in a crevice between 

 the logs," and was composed exteriorly of mosses, 

 and lined internally with the fur of small quadru- 

 peds and the feathers of birds. It was pouch- 

 shaped with a neatly-framed entrance constructed 

 of pine sticks. The walls were firmly impacted 

 and interw r oven, with a thickness of two inches; 

 and the cavity possessed a width of one and a 

 quarter inches, and a depth of four inches. 



The eggs are ordinarily six in number, and 

 measure .64 of an inch in length by .48 in width. 

 They resemble slightly those of the Black-capped 



