104 Mr. Nuttall’s Remarks and Inquiries 
Sylvia striata, (Black-poll Warbler.) This species, until 
after the middle of May, is often seen familiarly in our orchards, 
and possesses a strong resemblance to the preceding kind, both 
in its simple black and white color, and in its feeble notes, which 
sound merely like a whisper. The nest and eggs of this species, 
which undoubtedly breeds here, are also unknown. This and 
some other species feed greedily on the Canker-worm, and 
leave us for the woods when that insect descends from the trees. 
Sylvia pinus, (Pine Warbler.) This species breeds in the 
neighbourhood of this place, commonly in the Red Cedars (Juni- 
perus virginiana.) It is an active fly-catcher, hovering and spring- 
ing on its prey with great celerity ; at the same time, also, singing 
with sprightliness a somewhat monotonous, shrill warble. The 
Sylvia autumnalis is, 1 am satisfied, merely the young of this 
species. Ihave compared them carefully, and cannot discover any 
specific difference. They only vary in the depth of color, a cir- 
cumstance which commonly distinguishes the young and old. 
They do not differ in size, as was believed by Wilson. And, 
moreover, the species seems to exist only in the autumn! How 
far to the north of Massachusetts is this species found? I sus- 
pect, as far as Nova Scotia, at least ; since straggling individuals 
have been seen in this State even in the depth of winter. It 
arrives here early in April. 
Sylvia americana, (Blue Yellow-back Warbler.) A few 
pairs of this curious species (best distinguished by the bill, of 
which the lower mandible alone is bright yellow as well as the 
chin,) remain with us during the summer in elevated and rather 
mountainous woods, but the nest and eggs are yet unknown. 
Parus bicolor, (Crested Titmouse.) This bird is said to be 
anative of the United States, penetrating even as far north as. 
