The male has the crown of the head and occiput dark slate-colour; sides of the face grey; at the back of the neck a collar of chestnut-red; back, wings and tail slaty brown, the brown hue predominating on the back, and the slate-colour upon the other parts; inner webs of the primaries fading into white at the base, and crossed by bars of slate-colour, the interspaces freckled with buff; the inner webs of the tail-feathers are marked in a precisely similar manner; chin buffy white; the whole of the under surface rust-red, crossed by numerous narrow semicircular bands of white; irides bright yellow; cere dull yellow; bill black at the tip, blue at the base; legs and feet pale yellow; claws black. The female differs in having all the upper surface brown; the chestnut band at the back of the neck wider, but not so rich in colour; in all other respects she resembles her mate. The Plate represents the two sexes of the natural size. [Illustration: ACCIPITER TORQUATUS: _Vig. & Horsf._ _J. Gould and H. C. Richter, del^t_ _C. Hullmandel Imp._ ] ACCIPITER TORQUATUS, _Vig. and Horsf._ Collared Sparrow Hawk. _Falco torquatus_, Cuv.—Temm. Pl. Col., 43 adult, 93 young. _Accipiter torquatus_, Vig. and Horsf. in Linn. Trans., vol. xv. p. 182.—Shaw, Gen. Zool., vol. xiii. p. 30, pl. 33.—Gould, Syn. Birds of Australia, Part III. fig. 2. _Falco nisus_, Lath. Ind. Orn. Supp., p. xi.? _New Holland Sparrow Hawk_, Lath. Gen. Syn. Supp., vol. ii. p. 51?; and Gen. Hist., vol. i. p. 223? _Nisus australis_, Less. Traité d’Orn., p. 61. _Bilbil_, Aborigines of New South Wales. _J̏il-lee-j̏il-lee_, Aborigines of the lowland and _̏Min-min_ of the Aborigines of the mountain districts of Western Australia. _Little Hawk_, Colonists of Swan River. This species is especially abundant in Van Diemen’s Land and New South Wales, and would appear to enjoy a wide extent of range, since I have either seen or received specimens of it from every part of Australia with the single exception of the north coast.