"64 Allen, Summer Birds of Southern Vermont. [jan. 



very warm one and my stay on the summit of short duration. On my 

 second ascent of Killington Peak on June 28 I heard only one or two sing- 

 ing, though a week earher I had heard as many as eight. Mr. Howe says 

 it "undoubtedly breeds on Mt. Annanance and other peaks over 3,000 feet." 

 I am confident that it breeds on Annanance, for I saw there on June 30, 

 1896, a thrush with a loud squealing note which was unknown to me at 

 the time but which I have since learned to be one of the Bicknell's notes. 

 I think it very doubtful, however, if it is to be found on all peaks over 3000 

 feet, at least in the southern part of the State, though it may descend, to 

 that level on mountains of a greater altitude, spreading down from the 

 scrub firs and spruces which are its normal habitat into the larger growth 

 of the mountainsides. 



83. Hylocichla ustulata swainsoni. Olive-backed Thrush. — Rather 

 common at L. Abundant at W. B. Commonest on the higher levels 

 but descending well down the mountainsides. 



84. Hylocichla guttata pallasii. Hermit Thrush. — Abundant in both 

 localities, except that in 1895 tlais species had suffered decimation from 

 the severe frosts of the preceding winter in the South, so that I found 

 at L. that year but seven individuals singing (probably representing as 

 many pairs). 



85. Merula migratoria. American Robin. — Abundant. 



86. Sialia sialis. Bluebird. — Common at L., 1886; absent in 1895, 

 owing to the disastrous frosts of the preceding winter. Rather common 

 at W. B. 



The absence of the Bay-breasted Warbler {Dendroica castanea) from 

 the foregoing list will perhaps be a matter of surprise to ornithologists 

 who have found it comparatively common in the White Mountains of New 

 Hampsliire. I was constantly on the lookout for the bird at West Bridge- 

 water, especially among the spruce growth of the liigher altitudes, just 

 below the Black-poll's haunts, where I confidently expected to find it, but 

 though I am very familiar with its song and should certainly have noted 

 it had the bird been present and singing, I was unsuccessful. Neither did 

 I find the species at Willoughby Lake, Vt., where I spent the fortnight from 

 June 17 to July 1, 1896. It is also absent from Mr. A. H. Howell's admir- 

 able list of the 'Summer Birds of Mount Mansfield, Vermont' (Auk, XVIII, 

 1901, 337-347). Professor Perkins calls it simply a migrant, and Mr. 

 Howe (op. cit.) says, "Reported at Townshend summer, 1901, though 

 not actually found breeding, Evans." It seems improbable therefore that 

 the Bay-breasted Warbler can be anything like as common a breeder in the 

 Green Mountains as it is in the White Mountains. 



