19 
been procured ; it is a species admirably adapted for the sport of 
Falconry, and is a beautiful representative of the Faico Gyrfalco of 
Europe. Its native habitat is the interior of the southern and 
western portions of Australia. 
8. Faico melanogenys, Gould . . . . . . . Vol. I. PI. 8. 
Faico macropus , Swains. Anim. in Menag. p. 341. 
— — melanogenys , Kaup, Isis, 1847? p* 75. 
India, Europe, and North America on the one hand, and Cape 
Horn, the Cape of Good Hope and Australia on the other, are all 
inhabited by Falcons so nearly allied to each other as to favour the 
opinion that they are merely varieties of each other ; but I agree 
with the Prince of Canino and Professor Kaup in considering them 
to be distinct and representatives of each other in the respective 
countries they inhabit. It will doubtless be found that the habits 
and economy of the whole are as similar as they are in outw r ard ap- 
pearance ; and that the Faico melanogenys is as destructive to the 
ducks of the interior of Australia as the Faico Anatwn is in North 
America. 
9. Faico subniger, Gray Vol. I. PL 9. 
A powerful Falcon differing somewhat in structure from the F. 
hypoleucus and F. melanogenys. Nothing is known of its habits, 
and as yet I have only seen four examples, all of which were pro- 
cured in the interior of South Australia. 
10. Faico frontatus, Gould Vol. I. PI. 10. 
Faico lunulatus , Lath. Ind. Orn. Suppl., p. xiii. ? 
Sparvius lunulatus , Vieill. Nouv. Diet d’Hist. Nat., tom. x. 
p. 324. 
Faico longipennis , Swains. Anim. in Menag., p. 341. 
— — subbuteo , Brehm, Isis, 1845, p. 347 ? 
(Hypotriorchis) frontatus, Kaup, Isis, 1847? p. 65. 
A little Falcon with the habits of the Hobby and Merlin com- 
bined ; found in all parts of Australia to the southward of the 25th 
degree of S. lat. ; among other birds it preys upon the Quails and 
the little Partridges belonging to the genus Syno'icus. 
Genus Ieracidea, Gould. 
Generic characters. 
Fill and general form of Faico , but the wings less powerful, and 
the third quill-feather the longest ; tarsi more elongated, slender, 
and covered anteriorly with hexagonal scales ; toes more feeble, the 
hind-toe shorter, and the claws less robust. 
So far as our present knowledge extends, the members of this 
genus are only three in number, all of which are confined to Austra- 
lia and New Zealand. 
11. Ieracidea Berigora ......... Vol. I. PI. 11. 
Ieracidea Ferigora, Kaup, Class, der Saug. und Vog., p. 112. 
Professor Kaup considers this species and the succeeding one, 
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