on Dr. Jerdon's 'Birds of India.' 241 



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 I have ever remarked the hue oi A. chrT/saetm. 



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. 

 navioides at present in the Zoological Gardens. 



30. Aquila hastata. 



This species is well figured by Mr. Hodgson, as I 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 

 it 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. HiERAETUS 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. borneonensis, 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. K 



