24. 



Striges, 



of its New Guinea, allies. For the present I place it as a 

 western variety of iV". connivens, which may be distinguished as 

 occidejitalisy 



Habitat. IN^orth-western Austi'alia. 



[Specimens since obtained in the same locality prove it to be a distinct 



sjiecies.] 



Measurements of average sized specimens. 



A 1 $ ad, sk., Derby, North-western Australia, 1886. 

 A $ ad. sk., Derby, North-western Australia. 



Col. 

 Col. 



Ninox strenua. 



Tha Povtrful Oui. 

 Athene strenua, Gould, Proc. Zool. Soc, 1837, p. 142; id. Syn. Bds. 

 Austr., pt. iii (1838); Gray, Gen. Bds., vol. i, p. 35 (1845); Goidd, 

 Bds. Austr., fol. vol. i, p. 35 (1848); Bonap. Consjj. Ai\, tom. i, 

 p. 35 (1850); StricM. Orn. Syn., p. 165 (1855); Diggles, Austr. 

 Orn. (1865); North, Proc. Linn. Soc. N.S.W., vol. iii, 2nd ser., 

 p. 1774 (1888) ; Sharpe, Index Gould's Works, p. 21 (1893). 



leraglaux strenua, Kaup, Monocj. Strig. in Jar d. Gontr. to Orn., 1852, 



p. 109 ; id. Trans. Zool. Soc, vol. iv, p. 220 (1862). 

 Noctua strenua, Scldeg. Mus. P.-B. Striges, p. 40 (1862). 

 Hieracoglaux strenuus, Goidd, Handbl: Bds. Austr., p. 68, sp. 32 (1865). 



Ninox strenua, Sharpe, Ibis, 1875, p. 258; id. Oat. Bds. Brit. Mus., 

 vol. ii, p. 178 (1875) ; Ramsay, Proc. Linn. Soc. N.S.W., vol, ii, 

 p. 178 (1877); Broadb. Proc. Boy. Soc, Queensld., vol. ii, p. 119 

 (1886); Bamsay, Tab. List. Austr. Bds., p. 2 (1888); Broadb. 

 Proc Boy. Soc. Queensld., vol. v, p. 16 (1889) ; Batnsay, Bud. 

 No. 1, DejJt. Agri. N.S. W., p. 240 (1890). 



Hieraglaux strenuus, Gurncy,junr., Cat. Bds. Prey, p. 42 (1894). 



Young. " Head, neck and under sui"£ace of body pure white, 

 all the feathers fluffy, apparently the remains of nestling-plumage ; 

 on the crown some brown feathers barred across with white; the 

 forehead streaked with brown, the lores obscured by blackish 

 bristles, as also the eyebrows and cheeks ; ear-coverts dark 

 brown, streaked with white ; the under surface witli a few 

 narrow shaft-streaks of dark brown, broader on the flanks and 

 sides of the body, the plumes on the sides of the upper breast 

 barred with brown ; the back and all the rest of the upper 



