434 Mr. J. H. Gurney^s Notes on 



Brussels Museum are from Baiza, in Ecuador ; those in the 

 Norwich Museum are, like the type specimen figured by 

 Des Murs, from New Granada ; and an adult example in 

 the collection of Messrs. Salvin and Godman is from the 

 neighbourhood of Medelhn^ in the Columbian province of 

 Antioquia. 



Of the Hawk-Eagles with feathered tarsi there remain but 

 three to notice, those to which I propose to restrict the generic 

 name Spizaetus, viz. S. ornatus and S. tyr annus of Tropical 

 America, and S. coronatus of Africa. These three species 

 exhibit to a still greater extent than those of the genus Lim- 

 naetus the short wings and largely developed tails which are 

 more or less conspicuous in the large majority of the group 

 which I would (as already mentioned) designate imder the 

 title of Thrasaetinse. All these three Hawk-Eagles have a 

 yellow iris when adult ; but it is of a brighter and deeper 

 yellow in the two American species than in their African 

 congener. 



With regard to the two first-named species, I have nothing 

 to add to Mr. Sharpens account, except to remark with refer- 

 ence to the definition of the principal colour of the adult of 

 S. tyr annus as 'HDlack above and below,''^ that a specimen 

 now living in the Gardens of the Zoological Society exhibited, 

 when it first acquired its adult dress, a decided slaty tinge on 

 the black portions of the plumage, and especially on the 

 head and underparts, which probably disappears as the fea- 

 thers become worn, and in specimens which have been long 

 preserved. 



Mr. Sharpe defines the habitat of S. coronatus as " South 

 and West Africa,^^ and in his edition of Layard^s ^ Birds of 

 South Africa,' p. 39, gives Senegal as its north-west and 

 Natal as its north-eastern limit, so far as has at present been 

 ascertained. It is curious that this noble species has not yet 

 been recognized further to the northward in East Africa ; but 

 such is, I believe, the fact. 



Spizaetus coronatus bears a remarkable resemblance in its 

 general conformation to the Great Harpy Eagle of Tropical 

 America {Thrasaetus harpy ia); but the latter differs from it 



