41 



swamps or on mountain sides. It seems fond of a nesting 

 location where there are tall dead trees to serve as lofty watch 

 towers for its hunting. 



The Slate-colored Junco is abundant on Mount Greylock, 

 Berkshire County, and was noted more or less commonly 

 elsewhere, where spruce trees grow. In fact it may be found 

 more or less sparingly both in and out of the spruce growth 

 in most parts of western Massachusetts. It is widely but 

 sparingly distributed elsewhere in the State east to Middle- 

 sex County. There seem to be no records of its breeding in 

 Plymouth, Barnstable, Dukes or Nantucket counties or in 

 southern Worcester County. It is most common at altitudes 

 of 1,200 feet or more. 



The White-throated Sparrow is more common than the Junco 

 in the spruce regions of western Massachusetts, and where the 

 spruce has been cut off it remains to breed in the "slash," 

 where it seems to increase in numbers. It is not confined to 

 the spruce regions. In northern Massachusetts the White- 

 throat is now noted locally clear down to the sea, where the 

 Junco has not yet been observed in the breeding season. There 

 seems to be no record of this Sparrow in summer in the south- 

 eastern region of Massachusetts. 



The Blue-headed Vireo breeds in every county in the State, 

 except perhaps in Barnstable, Dukes and Nantucket counties. 

 It is a white pine and hemlock bird; hence, it breeds sparingly 

 where there are few of these trees. Contrariwise, it is a com- 

 mon bird in Plymouth County and in similar country in other 

 adjacent counties. In this general region there is more white 

 pine to-day than in any other part of the State; therefore, it 

 breeds commonly, if locally, near sea level in southeastern Mas- 

 sachusetts. 



The Black-throated Blue Warbler breeds both in coniferous 

 and deciduous woods over most of western Massachusetts, 

 ranging east sparingly as far at least as north central Worcester 



County. 



The Myrtle Warbler is much less common than the Black- 

 burnian or Magnolia, but it has quite a wide breeding range 

 over central and western Massachusetts; and as it has now 

 been found nesting in one locality in southern Worcester 



