241 
on Dr. Jerdon's 1 Birds of India. 1 
magnitude. So magnificent an Eagle could have been no other 
than the redoubtable Berkut ! Its colour was unusually dark, or at 
least more so than 1 have ever remarked the hue of A . chrysaetus. 
29. Aquila fulvescens. 
This species is united with the African A. ncevioides by Mr. 
G. R. Gray (B. M. Cat. B. Nepal, 2nd edit.) ; but it is a consi¬ 
derably smaller bird, and varies much more in its colouring. I 
have had many alive, three or four of them together, but never 
saw any approaching the size of the three fine specimens of A. 
mevioides at present in the Zoological Gardens. 
30. Aquila hastata. 
This species is well figured by Mr. Hodgson, as 1 pointed out 
to Mr. G. R. Gray, who does not include it in the second edition 
of his catalogue of that gentleman's collection. I have had many 
fresh specimens of all ages, and could always easily distinguish 
if from A. clanga. Though nearly of the same linear dimensions, 
it is considerably less robust, with smaller bill and feet, and there 
is a recognizable difference in the plumage in all its phases, 
while in its habits it partakes (in a prominent degree) of the 
nest-plundering propensities of Neopus malaiensis. 
31. HlERAETUS PENNATUS. 
This species occurs also in the Indo-Chinese subregion. Mr. 
Gould still regards it as distinct from the Australian H. morph - 
noides (Handb. B. Austr. i. p. 12). A rudimentary occipital crest 
always observable in Indian specimens. 
33. Eutolmaetus bonellii. 
I have no knowledge of this bird ever occurring in Lower 
Bengal. 
37. Spizaetus kieneri. 
With respect to S. caligatus and S. alboniger, mentioned under 
this head, see Mr. Gurney's enumeration of the species of this 
genus (for which he accepts the name Spizaetus) accompanying 
Mr. Gould's figure (Birds of Asia, part xvi.) of S. alboniger 
(S. borneonensisy Gray), I have to remark that the species 
common in Lower Bengal (and there the only one) is S. limnaetus 
(Falco caligatus of Raffles), identical with the common Malayan 
N.S.—-VOL. II. R 
