LANIAD.E. 141
[32,] 2. T yrannus borealis. (Swainson.) Northern Tyrant.
Sub-fa m il y ^ Tyranninse. Sw a in s. Genus, Tyrannus. B r isso n . Sw a in s.
C h . Sp . T y ra nn u s b o r e a l is , super ceerampelinus: alls caudaque forficatd obsctmoribus, crista incumbente conco-
lori, mente ventre et tectricibus caudce inferioribus pallidit flavescentibus, mandibuld inferiori pallescenti,
' iarsis brevibus'.
Sp . Ch . N o r t h e r n T y r a n t , above, dark greyish-brown; wings and forked tail nearly blackish-brown; no flame-
coloured spot on the crown ; under plumage mostly greyish-yellow; inferior mandible pale ; tarsi short.
P late xxxv. T h e F em a le.
Of this species, which is believed to be hitherto undeseribcd, only one specimen
was procured. It was shot on the banks of the Saskatchewan as it was flying
near the ground; but no information was obtained respecting its habits or nidifi-
cation. Like the King-bird, it is found in the fur-countries only in summer. It is
a considerably smaller species than the Tyrannus intrepidus, and may be at once
distinguished from it by the forked tail not tipped with white, and much shorter
tarsi, as well as by very evident differences in the colours of the plumage. Its
bill is rather more depressed at the base, and its lower mandible is dissimilar in
colour to the upper one, and is larger than that of T. intrepidus. The relative
lengths of the quill feathers of the two species are also different; the first of T.
borealis being rather longer than the third, and the fourth being farther apart from
the latter than in T. intrepidus.
DESCRIPTION
Of a female, killed at Cumberland House, lat. 54°.
C olour of the head, back, and lesser wing and tail coverts dark hair-brown ; of the quill
feathers and tail dark-umber or blackish-brown. The margins of the greater coverts are
paler; and the secondaries are slightly edged at the tip with soiled white. Under surface.—
The throat, belly, and under tail coverts are very pale greyish-yellow. The flanks and wing
linings are broccoli-brown, and the breast exhibits that colour, with a tinge of the yellowish
hue of the belly. The bill is shining blackish-brown above, and dull brownish-yellow beneath,
with an umber-coloured tip.
F orm, & c.—The shape of the bill is very nearly the same as that of the King-bird, and it
is similarly furnished with bristles at the base. The tips of the folded wings are rather more
than an inch shorter than the end of the tail. The second quill feather is the longest; the first