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 Medellin, 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. tyrannus 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 under 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. Sharpe's account, except to remark with refer¬ 
ence to the definition of the principal colour of the adult of 
S. tyrannus as black 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 f 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 harpyia) ; but the latter differs from it 
