102 Faxon, Summer Birds of Berkshire County, Mass. [April 
41. Petrochelidon lunifrons. EAVE SwaLLow.—Common. Accord- 
ing to Dr. Emmons, this bird first appeared in Williamstown in 1825.* 
42. Chelidon erythrogaster. BARN SWALLOw.—Common. Often seen 
flying about the summit of Graylock. 
43. Tachycineta bicolor. WHITE-BELLIED SwWALLow.—A few were 
seen in the village of North Adams, the only ones observed by me in 
Berkshire County. 
44. Ampelis cedrorum. CEDARBIRD.— Common in the cultivated 
lands. 
45. Vireo olivaceus. RED-EYED ViIREO.—Abundant wherever there 
are deciduous woods. 
46. Vireo gilvus. WARBLING ViIREO.—Not uncommon in the villages, 
as in Williamstown and North Adams. Seldom seen elsewhere, and 
never except near dwellings. 
47. ° Vireo solitarius. BLUE-HEADED VIREO.-—Not uncommon in heavy 
woods on the sides of the mountains. 
48. Mniotilta varia. BLACK-AND-WHITE WARBLER.—Not uncommon 
at lower levels. Not noted above about 2000 feet. 
49. Helminthophila ruficapilla. NasHviILLE WARBLER.—Not rare. A 
-good many were found in the pastures in the Notch and in the ‘Moun- 
tain Pasture’ (2200 feet). A few were seen along the Graylock turnpike 
up to within about a mile of the summit. 
50. Helminthophila peregrina. TENNESSEE WARBLER.—On the morn- 
ing of the 15th of July, near the point of divergence of the Williamstown 
and Adams paths on the southwestern side of Graylock Peak (altitude, 
about 3000 feet) I was surprised to hear the characteristic song of the 
Tennessee Warbler. [soon found the bird in a thick growth of black 
spruce, balsam fir, and mountain ash. Impeded by the dense under- 
growth of hobble-bushes and by fallen logs, and losing the clew of song 
(for the bird became silent soon after discovery), I was unable to follow 
the bird and secure it. The next morning I again discovered it on the 
same path, half way between the former place and the summit of the 
mountain, but failed in my attempt to shoot it. My identification of the 
bird in both instances was absolutely certain. The only record of this 
bird’s summering in Massachusetts that I can find is that of a bird, nest, 
and eggs, said to have been secured near Springfield by Professor Hors- 
ford.t This record seems to have been generally discredited. It is not 
included by Mr. Bicknell in his list of the summer birds of the Catskills. 
Tennessee Warblers seem to show much diversity in their choice of a 
summer haunt. In 1887 Mr. Bradford Torrey and myself found two males 
in full song through the breeding season in some pasture land largely 
grown up to black spruce in Franconia, New Hampshire, at a high level 
(some distance above the Profile House Farm). In the latter part of May, 
1888, my brother discovered it near the same place and also in an exten- 
sive larch swamp in the lower part of the same town, where Mr. Torrey 
* Amer. Jour. Sci. and Arts, XXVI, 208, 1834. 
+ Baird, Brewer and Ridgway, Hist. N. A. Birds. Land Birds, I, 207, 1874. 
