Identity of 
20 RAPACES. FALCO. Buzzarps. 
Rough-Legged Buzzard.—Faleo Lagopus, Linn. 
PLATE %. 
Falco Lagopus, Gmel. Syst. 1. p. 260.—Lath. Ind. Ornith. 1. p. 19. 33.— 
Meyer, 'Tasschenb. Deut. 1. p. 37. 
Falco Sclavonicus, Lath. Ind. Ornith. 1. p. 26. 54. 
Buse Pattue, Temm. Man. d’Ornith. 1. p. 65. 
Buse Gantee, Vail. Ois. d’Afr. 1. Pl. 18. 
Rauchfussiger Busard, Bork. Deut. Orn. Heft. female. 
Rough-Legged Falcon, Lath. Syn. 1. p. 75.—Shaw’s Zool. 7. p. 145.— 
Mont. Ornith. Dict.—Id. Suppl.—Bewick’s Br. Birds, Supp. 
Dusky Falcon, Penn. Arct. ZooL 
In the Appendix to Pennant’s British Zoology, a figure 
Rough-leg- and short description are given of this bird, under the name 
ged and 
Dusky fal- of ** the Rough-legged Falcon;” and in the Arctic Zoology of 
cons of 
Pennant. 
Occasional 
visitant. 
the same author, the bird described as the “* Dusky Falcon” 
appears to be very safely referable to the same species. By 
many ornithologists the Falco pennatus, a bird belonging to 
the first or Aquiline section, has been confounded with this 
species, to which it bears a close resemblance, both in size 
and colour. It may, however, be readily distinguished by 
the form and size of its bill, and the uniform brown colour of 
the tail, which, in the bird now under description, is always 
more or less white at the base. 
The Rough-legged Buzzard is a rare British species, and 
can only be considered as an occasional visitant. 
Monracu mentions two or three instances of its having 
been taken in the south of England. In the winter of 1815, 
Northumberland was visited by some of these birds, and se- 
veral opportunities were afforded me of inspecting both hving 
and dead specimens. 
Those which came under examination, closely resembled 
each other as to colour and markings, though some indivi- 
duals were darker along the belly than others; and the quan- 
tity of white upon the upper half of the tail was not always 
of equal breadth. ‘Two of these birds, from having attached 
themselves to a neighbouring marsh, passed under my fre- 
quent observation, 
