SPECIES 16. FJiLCO ULIGINOSUS.^ 
MARSH HAWK, 
[Plate LI. — Fig. 1.] 
Edw. IV, 291. — Lath, i, 90. — drct. Zool. p. 208, JV*o. 105. — 
Bartram, p. 290 . — Peale’s Museum. 318. 
A DRAWING of this Hawk was transmitted to Edwards more 
than fifty years ago, by Mr. William Bartram, and engraved 
in Plate 291 of Edwards’ Natural History. At that time, and 
I believe till now, it has been considered as a species peculiar 
to this country. 
I have examined various individuals of this Hawk, both in 
summer and in the depth of winter, and find them to corres- 
pond so nearly with the Ring-tail of Europe, that I have no 
doubt of their being the same species, t 
This Hawk is most numerous where there are extensive mea- 
dows and salt marshes, over which it sails very low, making 
frequent circuitous sweeps over the same ground, in search of 
a species of mouse, figured in Plate 50, and very abundant in 
such situations. It occasionally flaps the wings, but is most com- 
monly seen sailing about within a few feet of the surface. They 
are usually known by the name of the Mouse-Hawk along the 
coast of New Jersey, where they are very common. Several 
were also brought me last winter from the meadows below Phi- 
ladelphia. Having never seen its nest, I am unable to describe 
it from my own observation. It is said, by European writers, 
* Falco pygargus, Linn. 
f This opinion of Wilson’s is in accordance with that of some recent orni- 
thologists. We add the following Synonymes: F, cyaneus, Gmei.. Syst. r, p. 
276. — Lath. Ind. orn. p. 39. — Ring-tail, Penn. Brit. Zool. i, p. 194, No. 59. 
Hen-Harrier, Id. p. 193. No. 58. — F. pygargus, Linn. Syst. i, p. 89, No. 9, ed. 
10. — Circus Hudsonius, Vieii. Oisdel’Am. Sept, i, p. 36, pi. 9. — Busard Saint- 
Martin, Temm. Man. d’Orn. i, p. 72. 
