Young. Ashy-brown above ; upper tail coverts white, washed 

 with rufous, and having dark brown centres ; tail brown, with buff 

 tips, and crossed with six black bars. 

 Hab. : 1 to 9. 



20. C. gOllldi, Bonaparte (C. assimilis, Gould's Handbook), Gould's 



Harrier, or Swamp-hawk. 



Earthy-brown above, most feathers of back with darker brown 

 centres ; upper tail coverts white, with rufous spot on some ; 

 tail ashy-grey, tipped with white, the central feathers entirely grey ; 

 thighs white, with rufous streaks ; breast white, with brown stripes. 



Young. Uniform sooty-brown above ; upper tail coverts rufous ; 

 wings brown, like back ; under surface of body brown, chestnut on 

 abdomen, thighs, and under tail coverts ; tail nearly uniform brown 

 tipped with buff. 



Hab. : 1 to 9. 



GEN PS ASTUR. Hinder aspect of tarsus scaled ; ridge of bill 

 measured from anterior margin of cere is greater than half length 

 of middle toe (without claw). 



21. A, cinereilS, Vieill., Grey Goshawk. 



Upper surface ashy-grey, breast white, tail ashy-grey. 

 Hab. : 1 to 9. 



22. A. novse-liollandiae, Gmelin, White Goshawk. 



Under surface white, with bars ; slate above ; tail uniform white ; 

 wing in male 10'5 in., in female 12*5 in. 

 Hab. : 2 to 6. 



23. A, leUCOSOinilS, Sharpe (sub sp.), Lesser White Goshawk. 



Tail uniform white. Wing in male 7 '75 in., variable (Aust. Mus. 

 Cat., No. 4, part i., p. 12), 

 Hab. : 2. 



24. A. approxiinans, Vig. and Hors. , Goshawk. 



Underneath brown, with white cross-bars. 



Female. Total length, 20 in. ; wing, 12.25 in. ; tail, 10 in. 

 Male. Total length, 15 in. ; wing, 10'25 in. ; tail, 8'5 in. 

 Hab. : 1 to 9. 



25. A. CriientllS. Gld., Chestnut- coloured Goshawk. 



Underneath white, with pale rufous cross-bars (Sharpe). Adult 

 Male. Distinct rufous collar on hind-neck ; throat ashy- white, 

 slightly mottled with bluish-grey ; remainder of under surface, 

 under wing, and tail coverts barred alternately with narrow lines of 

 rufous and white, the rufous bars the broader ; tail ashy -white below, 

 with from 12 to 15 narrow black bars on feathers, the centre two 

 having spots on shaft lines (Ramsay, 1890). 

 Hab. : 8. 



GENUS ACCIPITER. Ridge of bill measured from margin of cere is 

 less than half middle toe (without claw). 



26. A. CirrhocephalllS, Vieill., Sparrow-hawk. 



Total length, female 14 in., wing 9'25 in., tail 7 to 7'5 in., tarsus 

 2 '5 in. ; male 12 in., wing 8 '25 in., tail 6 '5 in., tarsus 2 -25 in. 



Female may be distinguished from male of Astur approximans by 

 its short tail, never more than 7 '5 in. , and slender middle toe. 

 Hab. : 2, 4 to 8. 



