1876.) Summer Birds of the White Mountain Region. TT 
ful power and great liveliness. The woods frequented by these 
wrens, as well as many other forests, abound with warblers, only 
a few of which regularly pass the summer in Massachusetts, 
whereas most of them can no doubt in summer be found in Canada. 
The black and white creepers are not common ; but the little blue 
yellow-backed warblers are quite common, usually busily engaged 
among the tree-tops, their habits and their song being the same 
during their migrations through the neighborhood of Boston in 
the spring. They build their nests chiefly in the drier woods of 
maples, chestnuts, hemlocks (and oaks), as they do in Massachu- 
setts, when they occasionally pass the summer there. In such 
woods, and the damper spruce swamps, I often see the black- 
throated green, or hear his familiar notes, which are sometimes 
blended with the less musical ‘ zwee-zwee zwee-zwee” of the 
black-throated blue, which refrain is repeated in a peculiar tone, 
with a rising inflection. The two kinds of warblers, however, 
which I have been most surprised to meet here are the yellow- 
rumps and the prairie warblers. I saw a pair of the former 
among some spruces, my attention having been called to their 
song, which, by the way, I have heard again and again in the 
spring migrations of these birds, and which resembles more or 
less a weak imitation of the purple finch’s song. The prairie 
warblers I have twice met in different woods, and I found in a 
low spruce, in a dark wood, one of their nests, which, as well as 
the eggs in it, differed very much from all other specimens in my 
cabinet. I was rather amazed to find the former species so far to 
the south of what I supposed to be their range in summer, and 
the latter species in dark forests, a hundred miles northward of 
certain sunny pasture-lands in Massachusetts which have usually 
been considered the northern limit of their distribution. 
The Blackburnian warblers are also summer residents here ; 
and though the brilliant coloration of the male is an ornament 
to the place in which he lives, yet his simple notes, ‘ wee-seé- 
wee-seé-wee-seé” (to which a terminal “ wee-seé-ick”’ is occa- 
sionally added), are hardly an addition to the various musical 
charms of the place. I now and then meet black and yellow 
warblers in the woods, and hear or see chestnut-sided and Nash- 
ville warblers in more open lands; but these latter are rare. 
* Black-polls ” belong, I think, to Northern Maine rather than to 
Northern New Hampshire, and I have met but two here, though 
I have found several old nests in spruces and hemlocks, which I 
have attributed to these birds. The Canada fly-catchers, on the 
