ASTUR APPROXIMANS, Fig. $ Horsf. 

 Fig. 1. 



Mas. Ast. vertice et nucha plumbeis, collo postice torque rufescente obscure ornato ; corpore supra, alls 

 cauddque cinerescenti-fuscis ; hdc fusco saturatiore crebre fasciatd ; remigum pogoniis internis albis, 

 fusco fasciatis ; guld cinerescenti-fuscd ; pectore corporeque subtus rufesceuti-brunneis fasciis 

 albis notatis ; his fusco marginatis ; femoribus rufis, albo crebre et irregulariter fasciatis ; rostra 

 nigrescenti-corneo ; pedibusflavis. 



Jun. Capitis, nuchaque plumis fuscis, rufescenti-brunneo marginatis ; corpore suprdintense fusco, plum is 

 singulis notam semilunarem rufarn ad apicem ostendentibus ; caudd fused, colore saturatiore fas- 

 ciatd, et ad apicem albescente ; remigum pogoniis internis cervinis, fusco fasciatis; guld pallide cer- 

 vind, singidis plumis lined fused in medio notatis ; pectore pallide cervino fusco transversim notato ; 

 abdomine lateribusque pallide cervinis irregulariter fusco fasciatis ; femoribus crissoque pallide 

 rufis, similar iter fasciatis ; rostro nigrescente-fusco ; pedibus plumbeis. 

 Long. tot. 19 unc. ; rostri, 1 ; alee, 12; caudce, 10; tarsi, 3^. 



Male. Crown of the head and nape of the neck leaden grey ; on the back of the neck an obscure 

 collar of rufous brown ; the remainder of the upper surface, Avings and tail deep greyish brown ; the 

 latter numerously barred with brown of a deeper tint ; inner webs of the primaries and secondaries 

 greyish white, barred with dark brown; throat greyish brown ; breast and all the under surface ru- 

 fous brown, crossed with numerous white fasciae, which are bounded on each side with an obscure 

 line of dark brown ; thighs rufous, crossed by numerous irregular white lines ; bill blackish horn 

 colour; feet yellow. 



Young. Feathers of the head and back of the neck dark brown, margined with rufous brown ; the 

 remainder of the upper surface deep brown, each feather with a crescent-shaped mark of rufous at the 

 extremity ; tail brown, crossed with obscure bars of a darker tint, and tipped with whitish brown ; 

 inner webs of the primaries fawn colour, barred with dark brown ; throat buffy white, with a stripe 

 of dark brown down the centre of each feather ; breast buffy white, each feather crossed by two bands 

 of dark brown, the last of which assumes a triangular form; abdomen, and flanks, buffy white, crossed by 

 irregular bands of dark brown, which are blotched with rufous brown in the centre ; thighs and under 

 tail-coverts pale rufous, crossed by similar bands ; bill blackish brown ; feet lead colour. 

 Syn. Falco radiatus, Lath. Ind. Orn., Supp., p. xii. No. 40. — Temm. PI. Col. 123, youn£. 



Radiated Falcon, Lath. Gen. Hist., vol. i. p. 122, no. 153, pi. 11. 



Astur radiatus, ~\ 



fasciatus, /Vig. and Horsf. in Linn. Trans., vol. xv. p. 181. 



approximans, J 



Remark This bird so closely resembles the Accipiter torquatus in external appearance that one 

 description would nearly serve for both : the two species are however not only specifically, but ge- 

 nerically distinct ; the present one being a true Astur, with stout and powerful tarsi and a rounded 

 tail, and the other a true Accipiter, with a square or somewhat forked tail, and very slender tarsi and 

 feet, the middle toe of which, although belonging to a much smaller bird, is longer than the middle 

 toe of the present species : in consequence of the resemblance above alluded to, I have adopted the 

 name of approximans in preference to any other which has been given to it. 



Habitat. Australia : locality, New Holland. 



ASTUR NOV^-IIOLLANDIyE, Fig. # Horsf. 

 Figs. 2 & 8. 



Ast. toto corpore albo ; cerd, tarsisque fiavis ; rostri apice, et unguibus nigris : variat corpore supra 

 cinereo, subtus albo, fasciis cinereis crebris irregidariter notatis. 

 Mas. Long. tot. 15| unc; rostri, \\\ alas, 10-J; caudal, 8; tarsi, 24. 

 Fcem 20 ; ■ , 11; — , 12J; , 10; ,3£. 



The whole of the plumage pure white ; cere and tarsi yellow ; point of the bill and claws black : 

 or the whole of the upper surface grey ; throat and all the under surface white, crossed with numerous 

 irregular grey bars ; cere and tarsi yellow ; point of the bill and claws black. 



Syn. Falco Nova-Hollandia, Gmel. Syst., vol. i. p. 264. — Dand. Orn., torn. ii. p. 56 — Lath. Ind. 

 Orn., vol. i. p. 16. 

 Falco cdbus, Shaw, Gen. Zool. vol. vii. p. 92. 



New-Holland White Eagle, Lath. Gen. Syn., vol. i. p. 40. — lb., Supp., p. 12. — White's Voy., 



pi. in p. 250. — Lath. Gen. Hist., vol. i. p. 217- 

 Astur Nova-Hollandim, Vig. and tlorsf. in Linn. Trans., vol. xv. p. 179. 

 Astur albus, Jard. and Selb. 111. Orn., vol. i. pi. 1. 

 Astur Raii, Vig. and Tlorsf. in Linn. Trans., vol. xv. p. 180. 

 Remark. After a careful examination of a considerable number of specimens in the two states of 

 plumage above described, but agreeing in all their relative admeasurements, I am led to differ from 

 the opinion of most naturalists, and to consider that the two birds are strictly identical. I find this 

 difference of colouring to be common to both sexes, but the females are readily distinguishable by 

 their much larger size. 



Habitat. Australia : locality, New Holland. 



