162
Peterborough, New Hampshire.
1898
July 5 to
 Aug. 15
(No. 10)
  The bird fauna, as already indicated, contains an
interesting mixture of forms supposed to be more or less
typical, respectively, of the Alleghanian (or Transtional) and
the Canadian faunas. Thus the Brown Thrasher, Cat bird,
Field Sparrow and Towhee are all abundant and found in 
close association with the equally numerous Hermit Thrushes,
Golden-crested Kinglets and Black & Yellow Warblers while
the Wood Thrush (only one specimen seen), the Baltimore Oriole
(not common), and the Quail (rare) may be met with
in the same localities as the Winter Wren (not common), the
White-throated Sparrow (generally but sparingly distributed), the
Junco (uncommon excepting on the higher ridges) and
the Myrtle Warbler (not common). Swainson's Thrush occurs 
abundantly on Monadnock (fide Abbott Thayer) but not, apparently, 
at all at lower levels. The Canada Nuthatch, Black-throated
Blue Warbler, Canadian Warbler and Olive-sided Flycatcher
may be looked for here with some confidence for I found them 
all at Winchendon, Mass., in [sic] June 18.
  Save in respect to the apparent absence of the four species
last named the known bird life of the Peterborough region
is essentially the same as that of Winchendon but I do not
remember (I am writing solely from memory) seeing at the
latter place anything like the numbers of Field Sparrows, 
Towhees and Indigo Birds which have been present here
this season. Another point of apparent difference is that
the Blackburnian Warbler was one of the most abundant
of the woodland birds at Winchendon whereas only one
specimen has been noted here (Mr. Deane has seen two
or three at Jaffrey).
  I have looked him in vain for the Wilson's Thrush (abundant
at Jaffrey- Deane), Yellow Warbler, Savanna Sparrow,