1S93] DwiGHT, Summer Birds of the Petiiisylvaiii'a Alleghanies. \'\<y 



Mountain where fifteen or twenty males would be heard in the course ot 

 a day. The young were apparently not yet out of the nest. It is reported 

 as breeding b}' both Baird and Dr. Warren. 



Dendroica maculosa. Magnoli.\ Warbler. — Another common spe- 

 cies, less so, however, than the preceding. Young were on the wing. 

 Dr. Warren says that it breeds in many sections of the mountains. It 

 was not found by Baird in summer. 



Dendroica pensylvanica. Chestnut- sided Warbler. — Rather com- 

 mon about Cresson and on Wopsononock Mountain, but only detected 

 once on North Mountain where the continuous forest has no attractions 

 for a species so partial to tracts of 'scrub.' 



Dendroica blackburniae. Blackburnian Warbler. — It would be hard 

 to say whether this species or D. ccerulesceiis was the most abundant. 

 There were times and places where both might almost be said to swarm. 

 I obtained young. Baird and Dr. Warren both record it as breeding; the 

 latter saj's "sparingly in the mountains." 



Dendroica virens. Black -throated Green Warbler. — Still another 

 most abundant species, frequenting, like D. blackbiirttice, the hemlocks. 

 Found as low as 1000 feet in several different localities. Young were met 

 with. Baird records it as breeding; also Dr. Warren who says it breeds 

 in the northern tier of counties and in many to the south. 



Dendroica vigorsii. Pine Warbler. — In Bradford County, near To- 

 wanda, where the altitude is less than 1000 feet, scattered groups of 

 yellow pines were full of Pine Warblers, but neither this species nor the 

 pines (except a few on Wopsononock Mountain) were met with on the 

 Alleghanies proper. 



Seiurus aurocapillus. Ovenbird. — A common species everywhere. 



Seiurus noveboracensis. Water-thrush. — Farther evidence of the 

 Canadian tinge of the avifauna is afforded by the common occurrence of 

 this species along streams. The young were barely able to fly, and sev- 

 eral vacated nests were found in the upturned roots of fallen trees. Dr. 

 Warren states that it breeds in Lycoming, Centre, Clinton, and Clear- 

 field Counties. In Baird's time this species was not distinguished from 

 Seiurus moiacilla. 



Geothlypis Philadelphia. Mourning Warbler. — A single male was 

 found singing on Wopsononock Mountain where was an extensive well- 

 nigh treeless slope of ferns. No doubt it can be obtained elsewhere in 

 suitable localities, for Dr. Warren states that it breeds in a few secluded 

 mountain districts. Baird does not mark it as breeding. 



Geothlypis trichas. Maryland Yellow-throat — Common about 

 Cresson, and one detected in a swampy portion of the clearing on North 

 Mountain. 



Sylvania canadensis. Canadian Warbler. — There is little in a name, 

 but this bird does happen to belong to the Canadian fauna, and seems in 

 summer to be out of place in that of Pennsylvania. Still it is certainly 

 abundant in all the localities I visited. Young birds were obtained. 

 Baird records its breeding; and Dr. Warren says that it breeds sparingly 

 in some of the mountains. 



