=164 Black-breasted Buzzard=, _Gypoictinia melanosternum_, A. (interior). v.r. _timber_, _plains_ 23 "Fine species;" crown, face, chest, abdomen black; flanks chestnut; hind-neck light-brown; upper brownish-black; wing-quills white base, rest black; this white patch gives appearance of window in wing when flying; f., larger. Animals. 2 5 =165* Australian Black-shouldered Kite=, _Elanus axillaris_, A. Mig. r. _open plains_ 12.5 Upper delicate-gray; head, under white; jet black shoulder, patch under wing; tail grayish-white; f., sim. Insects, reptiles. =166 Letter-winged Kite=, White-breasted Sparrow Hawk (e), _E. scriptus_, E.A., S.A., W.A. r. _plains (interior)_ 12.5 Like 165, but more black on under angle of wing gives letter W when wings expanded; f., sim. Insects. 4 37 =167* Black-cheeked Falcon=, _Falco melanogenys_, A., T. =vt. Eur. Peregrine Falcon. Stat. c. _plains_, _coast_, _rocky_ 15 Crown, side of head black; upper-breast creamy spotted black; rest of under barred black, reddish-gray; upper, wings, tail dark-gray; tail barred brown, gray; f., larger. Birds. [Page 83] [Illustration: [169] [170] [171] [172] [173]] =168 Gray Falcon=, Blue (Smoke) Hawk, _F. hypoleucus_, A. =vt. Eur. Gyrfalcon. v.r. _timber_, _plains_ f., 17; m., 12 "Rare beautiful falcon;" bluish-white below; grey above; tail barred gray, brown. Birds. =169 Black Falcon=, _F. subniger_, A. v.r. _plains (inland)_ 17 Dark, sooty-brown, paler below; chin whitish; f., larger. =170* Little Falcon= (White-fronted), Duck Hawk (e), Australian Hobby, _F. lunulatus_, A., T., =vt. Eur. Hobby. Stat. c. _plains_ f., 13.5; m., 11.5 Forehead white; upper grayish-black; cheeks black; tail barred gray, chestnut; throat buff; chest reddish-buff, striped dark-brown; under, thighs reddish; incomplete whitish collar; f., larger. Birds, insects. 2 3 =171 Striped Brown Hawk= (Western, Orange-speckled), _Hieracidea berigora_, A. [~171 _Ieracidea berigora._] v.c. _swampy_, _plains_ 17 Upper dark-brown; wings spotted reddish; incomplete collar, under buff-white striped dark-brown; throat whitish; naked skin round bill yellow; tail barred dark-brown, gray; f., larger. Caterpillars, insects, birds. =172* Brown Hawk=, _H. orientalis_, A., T. [~172 _Ieracidea orientalis._] Stat. v.c. _timber_ 17 Head, upper dark-brown; line over eye, throat buff; under buff spotted rust-brown; tail brown barred rust-red; Skin round bill bluish; f., larger. Food as 171. 1 28 =173* Nankeen Kestrel=, Windhover, Mosquito Hawk, Sparrowhawk (e), _Cerchneis cenchroides_, A., T., N.Z. =vt. Eur. Kestrel. Stat, v.c. _timber_, _plains_ 11.5