4 FALCONIDiE. 



lead colour"; length 6 inches ; bill from forehead 0-7 inch, from 

 gape 75 inch; tarsus 1-65 inch; mid toe (s.u.) 1 inch. Body 

 covered all over with creamy-white down, longest on the head 

 and nape ; pin-feathers just beginning to show on the primaries. 



Nestliu/j, Reg. No. B. 10158. Taken from the nest November 

 24:th, 1885, Ivanhoe, N.8.W. " E} es dark brown, eyelids, cei-e and 

 gape gi-eenish ; l)ill dark horn coloui- ; legs and feet yellow, claws 

 light horn colour." Body covered with creamy- wliite down, 

 longest on the head and breast ; pin-feathers showing through the 

 down of the primaries and secondaries. Total length 7 inches, 

 tarsus \-G inch. 



Astur cruentus. 



Western Australian Goshawk. 



Adult female. Reg. No. A. 4509, Port Essington, 1879, Col. 

 Total length 16-8 inches : wing 10-7 inch ; tail 8*4 inches ; bill 

 from forehead 1 inch, from gape 1 inch, from nostril 0'C5 inch ; 

 tarsus 2-9 inch ; mid-toe (s.u.) 1-6 inch. 



Adult vuile. Reg. No. A. 4513. Total lengtli 15 inches ; wing 

 9'8 inches, tail 7*5 inches ; bill from forehead 0'95 inch, from gape 

 0"9 inch, from nostril 0'55 inch ; tarsus 2-8 inches ; n)id toe (s. 

 u.) 1-4 inch. 



Adnlt Diale. Reg. No. A. 4512. Total length 17-2 inches; 

 wing 10'7 inches ; tail 8'5 inches, l»ill from forehead \-\ incli, 

 from gape 1 inch, from nostril 7 inch; tarsus 3 inches; mid 

 toe (s.u.) 1 '6 inch. 



Adult mule. All the upper suriace of the head, wings and their 

 coverts, back, rump and tail lead-blue with a slight shade of brown; 

 a distinct rufous collar round the hind neck and joining the chest; 

 throat ashy-white, slightly mottled with bluish-grey, the remainder 

 of the undersurface, under wing- and tail-coverts barred alternately 

 with nan-ow lines of rufous and white, the rufous bars the broader; 

 tail ashy-white below with from twelve to fifteen narrow black 

 bars on the feathers, the centre two having spots on the shaft-line 

 showing remains of the cross bars; primaries with twelve to four- 

 teen blackish cross bars, which in very old birds are broken and 

 altogether obsolete at the tips of the feathers ; the inner webs of 

 the under surface of all the quills have a tinge more or less of 

 fawn coloit". Description from a freshly mounted specimen, bill 

 bluish at the base, tip black, h'gs and feet dull yellow, claws black. 

 Towards the moulting season the plumage of the upper surface 

 becomes bleached and is then of a dull brown.* 



* Set; Catalogue i>f Diurnal Aeeipitres, Australian Museum, 1S76, pp 

 to and IG. 



