SPECIES 7. FALCO ATRICAP ILEUS.* 
ASH-COLOURED, OR BLACK-CAP HAWK. 
[Plate LIL — Fig. 3.] 
Peale’s Museum, JVo. 406. 
Of this beautiful species I can find no precise description. 
The Ash-coloured Buzzard of Edwards differs so much from 
this, particularly in wanting the fine zig-zag lines below, and 
the black cap, that I cannot for a moment suppose them to be 
the same. The individual from which the drawing was made, 
is faithfully represented in the plate, reduced to one half its na- 
tural dimensions. This bird was shot within a few miles of 
Philadelphia, and is now preserved, in good order, in Peale’s 
museum. 
Its general make and aspect denote great strength and spirit; 
its legs are strong, and its claws of more than proportionate 
size. Should any other specimen or variety of this Hawk, dif- 
fering from the present, occur during the publication of this 
work, it will enable me more accurately to designate the spe- 
cies. 
The Black-cap Hawk is twenty-one inches in length; the bill 
and cere are blue; eye reddish amber; crown black, bordered 
on each side by a line of white, finely specked with black; these 
lines of white meet on the hind-head; whole upper parts slate, 
* Falco Paltinibarius, Linn. As was suspected by Wilson, this is not a new 
species, but the celebrated Goshawk. The following' synonymes are given 
by Prince Musignano; Falco Colu.nbariiis, Gmei,. Sysl. i, p. 281. Lath. — 
Temm.— F. genhds, Linn. Gmel. Syst.t, p. 270. Lath, (young) F. gallina~ 
rms. Linn. Lath, (very young female.) I'Jluluiir, Buff. PI. Enl. 418. (adult) 
[J^iutour sors, Buff. PI. Enl. 461. (young.) Le Ihtzard, Buff. PI. Enl- 42.S. 
(very young female.) See Journal. Acad. Nat. Sc. iii, p. 346. 
