Mr. R. B. Sharpe’s Catalogue of Accipitres. 215 
Of all the aberrations of colouring incident to the Golden 
Eagle, the most curious appears to me to be that upon the 
possessors of which the appellation of Aquila barthelemyi has 
been bestowed; and I regret that I am not able to add any 
information to that which I have already recorded on this 
subject in f The Ibis J for 1864, p. 339, and in the P. Z. S. for 
1870, p. 81. I may, however, mention that the Algerian 
example alluded to in the former of these papers possesses 
the white shoulder-patch on one side only, in which peculiarity 
it resembles a German specimen recorded at page 35 of the 
‘ Pichesses Ornithologiques du Midi de la Prance/ 
In f The Ibis 9 for 1866, p. 422, I quoted an incident con¬ 
firmatory of the statements of Pennant and Atkinson relative 
to the competency of the Golden Eagle to attack the Wolf; 
and I take this opportunity of calling attention to two recent 
notices referring to this subject—one from the pen of Captain 
J. Biddulph, which will be found in the f Proceedings of the 
Boyal Geographical Society^ for August, 1874, at p. 425, the 
other from that of Mr. J. Scully, at p. 123 of f Stray Fea¬ 
thers ' for 1876* 
In conclusion I may mention that I possessed for several 
years an adult living specimen of the Golden Eagle in which 
the iris, instead of being of the usual rich hazel-brown, was 
of a dull pale yellow, exhibiting an aberrant coloration re¬ 
sembling that which sometimes occurs in the iris of Buteo 
vulgaris. 
I now propose to consider three nearly related Eagles which 
Mr. Dresser has distinguished in his f Birds of Europe 9 by the 
English names of Imperial, White-shouldered, and Steppe- 
Eagles ; and I am glad that the circumstance of Mr. Dresser 
having so recently published almost all that can be said in 
addition to Mr. Sharpens account of these three species, ren¬ 
ders it needless for me to dwell upon them at so great a length 
as might otherwise have been requisite. 
Mr. Sharpe applies to the Imperial Eagle the specific name 
of heliaca; 99 but I agree with Mr. Dresser in believing that 
this species is entitled to the earlier appellation of “ mogilnik,” 
* [See also Dr. Finsch’s note, anted, p. 50 .—Edd.] 
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