Mr. R. B. Sharpe’s Catalogue of Accipitres. 69 
resembling the dress of the adult female, and the third that 
which Mr. Sharpe correctly designates as the plumage of the 
“ adult male.” 
Mr. Sharpe includes Buteo varius of Gould amongst the 
synonyms of B. erythronotus —which I am able to confirm, 
as the type specimen is now in the Norwich Museum, and is 
an immature example of this species. 
There is also included amongst the synonyms of B. ery¬ 
thronotus in Mr. Sharpens work Buteo unicolor of D'Orbigny; 
but this I am convinced is a mistake, as the Buzzard de¬ 
scribed by D’Orbigny under that name is decidedly smaller 
than B. erythronotus, and very differently coloured. 
In the list given by Mr. Sharpe of the specimens of B. ery¬ 
thronotus preserved in the British Museum, there is included 
an immature skin from the island of Masafuera, that should 
no doubt be referred to the very interesting allied species 
Buteo exsul , which has only been obtained on that island, and 
which, subsequently to the publication of Mr. Sharpens vol¬ 
ume, has been described by Mr. Salvin at page 371 of f The 
Ibis' for 1875. 
Messrs. Salvin and Godman have very kindly permitted me 
to examine their specimens of this fine Buzzard; and I have 
thus been enabled to observe that the white margins to the 
lesser wing-coverts and interscapulary feathers are broader 
and more numerous in the adult female than in the adult male; 
but, beyond this remark, I have nothing to add to the full 
description which Mr. Salvin has already published, except to 
note that in this species the fourth primary is but very 
slightly emarginated. 
Another species closely allied to Buteo erythronotus is Buteo 
poliosomus. The first plumage of this Buzzard is not described 
in Mr. Sharpens work; and I therefore propose to give some 
particulars respecting it, taken from three specimens in that 
stage obtained in the Falkland Islands, and now preserved 
in the Norwich Museum. These bear a general resemblance 
to the corresponding plumage of B. erythronotus, but are 
much more fuliginous in the tone of their colouring. On 
their upper surface the scapulars, interscapulars, and wing- 
