46 



J. H. GURNEY : THE EUROPEAN SPOTTED EAGLES. 



SEX NOT ASCERTAINED. 



Locality unknown, adult 



55 •)■> J' 



Austrian Silesia, „ 

 Dobruscha, nearly adult 

 Southern Russia, „ 

 Cairo, immature 

 India, adult... 

 Sumatra (collected by Sir Stamford Raffles), 

 immature... 



1 9 '60 in, 

 21*80 in. 

 19*80 in. 

 1970 in. 

 20*0 in. 

 20*40 in. 

 20*50 in. 



19*0 in. 



AQUILA POMARINA. 

 MALE. 



Carpathia, adult 



Pomerania, adult 

 Germany, ,, 



FEMALES. 



1875 in. 



19*10 in. 

 1-9*20 in. 



SEX NOT ASCERTAINED. 



Albania, adult 

 Beyrout, immature ... 

 Nubia 



I5'20 in. 



... ... ... 19*0 in. 



... ... ... 19*40 in. 



In the adult dress the two races of Spotted Eagles are indis- 

 tinguishable, except from the slight difference in size indicated by 

 the wing measurements above referred to; but in the immature stage 

 of plumage, the smaller race is characterised (and as far as I have 

 observed invariably so) by a patch of rufous or luteous colouring 

 generally about an inch in vertical diameter, and a little less if 

 measured across, which is situated a little above the centre of the 

 nape, whilst in the young birds of the larger race the nuchal feathers 

 are either destitute of any rufescent colouring, or those that are so 

 coloured are scattered singly over the hinder part of the neck, and 

 are not gathered together into a distinct patch as in the smaller 

 subspecies. 



I have explained at p. 132 of my published list of the Diurnal 

 Birds of Prey, my reasons, founded on the above diagnosis, for 

 referring the Irish Spotted Eagle, which is preserved in the Museum 

 of Trinity College, Dublin, and also the two recorded Cornish 

 specimens, to the larger race, A. clanga, and my opinion as regards 

 one of the Cornish examples has been confirmed by Mr. Dresser in 

 the Zoologist for 1885, p. 230. 



Naturalist, 



