336 Dr. T. C. Jerdon's Supplementanj Notes 



41. POLIOAETUS ICHTHYAETUS. 



I cannot agree with Mr. Blyth as to Haliaetus lineatus, Gray, 

 of Hardwicke's ' Illustrations ' being the young of this bird. I 

 have obtained the young bird, and it is very different in appear- 

 ance. I look on the figure in question as representing a young 

 Kite, Milvus govinda. 



41 bis. POLIOAETUS PLUMBEUS, HodgSOH. 



Whole upper phimage, including all the tail, brownish-cine- 

 reous; in the very old bird perhaps pretty pure ashy; lower 

 plumage, except the lower abdomen and under tail-coverts, which 

 are white, much the same. 



Dimensions much the same as in the last. 



On looking over j\Ir. Hume's collection I was struck by seeing 

 no white on the tail, and find that all the birds from the N.W« 

 Himalayas have the same character. Mr. Brooks, of Etawa, 

 named it in a letter fascicaudatus, but subsequently con- 

 sidered it to be the small Pol. humilis, T., of the Malayan fauna. 

 It is, however, a larger bird, nearly equal in size to the other 

 species, and, I think, wants the dark terminal tail-band which 

 is so conspicuous in P. humilis. I see that Hodgson, who procured 

 both species, in his drawings called one plumbeus and the other, 

 I believe, lucarius; so I shall retain the former name, both having 

 been published. Mr. Hume in his ' Scrap-book ' has not noticed 

 the distinction ; but as he has good specimens I will leave hira 

 to describe it more fully hereafter. 



42. Haliaetus leucoryphos, Pallas. 



Hal. unicolor represents the young bird from the nest, not 

 after the first moult, as erroneously stated by me. 



42 bis. HALiAiixus albicilla, L. 



I think that there is very little doubt that the Sea-Eagle de- 

 scribed by Hume, and attributed, with a query, to H.2Jela(/icus, is 

 indeed the European bird. It is a most unexpected addition to 

 the avifauna of India ; and its sole occurrence as j^et in the plains 

 of the North-west Provinces is an anomaly in the geographical 

 distribution of this Eagle. I saw Mr. Hume's two specimens, 

 both of which are immature; and they closely resemble living 

 specimens of the young European bird in the Zoological Gar- 



