•'»4 ACCIPITEES. 



vol. i, p. 394 (1874) ; id. Froc. Zool. Soc. (1875), p. 339 ; Raimay, 

 Proc. Zool. Soc. (1875), p. 579; id. Tab. List Austr. Bds., p. 1 

 (1888) ; North, Nests and Eggs, Austr. Bds., p. 17, pi. iii, fig. 

 3 (1889) ; Cox and Ham, Proc. Linn. Soc, N.S. W., vol. iv, 2nd 

 ser., p. 398 (1890) ; Sharpe, Index Gould's Works, p. 109 (1893) ; 

 Keartl. Aves. Horn Exped. Centr. Austr., p. 107 (1896); id. Vict. 

 Nat., vol. xiii, p. 61 (1896) ; North, Ann. Pep. Austr. Mus. for 

 1895, p. 8 (1896). 



Gennaia hypoleucus, Kaiip, Contr. Orn., 1850, p. 55. 



Gennaia hypoleiica, Gurneij, Ibis, 1882, p. 452 ; id. List Diurn. Bds. 

 Prey, p. Ill (1884); Gurne.ij, jun., Cat. Bds. Prey, p. 29 (1894). 



Hierofalco hypoleucus, Bonap. Per. et Mag. de Zool., 1854, p. 536. 



Adult female. All the upper surface bluisH ashy grey, all the 

 under surface of a lighter ashy grey tint, each feather having a 

 blackish shaft-line down the centre, more conspicuous on the 

 upper than on the under surface. Wings above have a more 

 ashy tint on the margins of the coverts and secondaries ; all the 

 Aving-feathers, scapulars, rump, upper and under tail-coverts 

 and tail crossed with ashy brown bars, darkest and more distinct 

 on the tail and wings ; tips of the tail-feathers margined with 

 ashy white, the bars of the under surface of the tail of a browner 

 tint; primaries aboveblackish brown; shafts lead-colour ; the outer 

 webs of the basal portion washed with bluish ashy grey, inner 

 webs ashy white, freckled with brown and crossed with triangular 

 denticulations of a darker tint, running from the shaft and 

 reaching nearly to the margin ; secondaries ashy grey ; the margins 

 of the inner webs ashy white freckled with brown and barred like 

 the primaries ; the inner primaries and secondaries narrowly 

 margined with white at the tips ; under surface of the wings and 

 axillaries ashy white, with indistinct shaft-lines ; the throat and 

 abdomen and under tail-coverts are paler than the rest of the 

 under surface of the body, and in some specimens almost white ; 

 the frontal line and sides of the face light ashy grey ; ear-coverts 

 whitish, tinged with ashy grey on the upper portions ; a narrow 

 line of black round the anterior portion of the eye, widening 

 below it, formed by produced black shafts of feathers about the 

 lores ; iris hazel ; orbits, logs and feet bright deep yellow ; bill 

 yellowish at the base, dark horn-colour at the tip. Total length 

 15 inches, wings 12 6, tarsus 1-8, tail 05, bill from forehead O'O, 

 from gape I'L, culmen 1"1. 



Adult male similar in plumage, but slightly smaller. Total 

 length 12 inches, wing ll'l, tail 6-2, tarsus 1-75, bill 0-85, from 

 gape I'l. 



Habitat.— Qw\i of Carpentaria, AVide Bay District, Dawson 

 River, New South AVales, Interior, South and West Australia. 



