1SS4. 1 Brewstf.k oil Birds of Berkshire Coini/y, Mass. 7 



calitics of in;)i"L' or less tlilll'rciil cli;ir;ictcr tVoin those ;il)o\e in- 

 dicated. 



Poxvual. \cr))io)/t . The follo\vin<i" notes were made yune 23. 

 durino- a (h-i\e to Powiial Pond, a small sheet of water about 

 twelve miles to the northward of Williamstown in Pownal. the 

 border township of Vermont. AlthouLch the locality does not 

 come stricth' within the scope of the present paper, it seems tcj 

 me worth brief mention in this connection. 



After passing the State line a marked change was apparent in 

 the topography- of the country. The surface became more broken 

 and the hills higher, manv of them in fact being low mountains. 

 They were mostly cleared and cultiyated. or in pasturage, nearly 

 to their summits, which were usually tufted ^\\\\^ woods. Alto- 

 gether, the land had a more fertile aspect, especially on the 

 mountain sides. 



The bird fauna did not differ strikingly from that of Williams- 

 town, and showed no traces of any decided Canadian infusion. 

 The species observed which had not been previously noted at 

 Williamstown were the Hermit Thrush, abundant and in full 

 song in an extensive larch swamp ; the Nashville Warbler, one 

 specimen ; the .Swamp Sparrow, one ; Henslow's Sparrow, a pair 

 feeding voung in a meadow bordering a brook ; the Yellow- 

 winged Sparrow, a single male, singing on a fence stake by the 

 roadside ; the Olive-sided Flycatcher, a pair at work on a nearh' 

 finished nest built close to the stem of a } oung larch in the swamp 

 just mentioned ; and the Great-crested Flycatcher, of which at 

 least half-a-dozen were seen and heard. The Nashville Warbler 

 and the Yellow-winged Sparrow were not met with at all in Berk- 

 shire County, but the Swamp Sparrow was afterwards found 

 sparingly along the course of a brook near the base of Mt. Gray- 

 lock, the Hermit Thrush and Olive-sided Flycatcher proved to 

 be abundant on the sides of that mountain, and several Henslow's 

 Sparrows were obser\ed in a meadow near the town of Adams. 



The Hopper. On the afternoon of June 24, I left Williams- 

 town and took up my quarters at a i'arm house at the head of a 

 picturesque vallev locally known, from its peculiar shape, as the 

 ••Hopper." This valley is a cul de sac. opening to the west- 

 ward and walled in on the other three sides by Mt. Graylock and 

 its neighboring summits. Prospect and Bald Mountains. Although 

 lying at a considerable elevation above Williamstown, and shut 



