SYLVIAD®.
of two or three of the outer tail feathers whitish near their ends. Under plumage sulphur-
yellow, changing to primrose on the abdomen, and pure gamboge-yellow on the under tail
coverts: inner wing coverts yellow. Bill and legs pale umber-brown.
F orm .—Bill perfectly awl-shaped, both mandibles tapering equally; commissure very
slightly arched. Wings: the second, third, and fourth quill feathers scarcely differing in
length. Tail even. Length of the hind toe equal to that of the inner one ; its claw equal in
length, but stronger and more curved than that of the middle one.
Length total . . . 5 0
,, of tail 2 3
, „ of folded wing . 2 5
„ of bill from rictus 0 5f
Dimensions.
Inch. Lin.
Length of bill on its ridge 0 4 |
„ of tarsus . »0 7if
„ of middle toe . 0 4 |
Inch. Lin.
Length of middle nail . 0 2
„ of hind toe . . 0 ^
. „ of nail . . . . 0 2
[52.] 7. S y l v ic o l a (V e r m iv o r a ) p e r e g r in a . (Swainson.) Tennessee
Worm-eater.
Genus, Sylvicola. Sub-genus, Vermivora, Swainson.
Tennessee Warbler (Sylvia peregrina). W il s o n , iii., p. 83, pi. 25, f. 2.
Sylvia peregrina. B o na p. Syn., p. 87, No. 140.
P l a t e x l i i . U n d e r f ig u r e .
One specimen only was procured at Cumberland House, on the banks of the
Saskatchewan, in the latter end of May. It was seen in a dense thicket of
small trees, flying about among the lower branches; and as it was pursued
some time without being driven away from the place, it is probable that it had
a nest and mate in the neighbourhood. Nothing was ascertained respecting its
habInit ss.o—mRe .points of colour our specimen differs from that described by Wilson.
Both the series of wing coverts, and not the lesser only, are coloured like the
back. The lesser quills are also edged with rich yellow-olive; but the greater
are bordered by a clear pearly-white,—not, as in Wilson’s bird, “ edged broadly
with yellow-olive.” Not only the upper surface of the head, but that of the neck
also, is cinereous, without any mixture of olive. These differences, however, may
possibly originate in age. The Sylvia bicolor of Vieillot (pi. 90 bis) is a totally
distinct species from this, and is the only one of this group yet discovered in
Brazil. M. Vieillot, perhaps by mistake, says it inhabits North America: inde