38 ARKIV FÖR ZOOLOGI. BAND 5. NIO 9. 



developed (and so is the case in the Aquila glitschii from 

 Vladicaucas, as well), and the inner web of the secondaries 

 is better termed somewhat mottled than barred. This may 

 partly be due to the darkness of the web of the feathers of 

 the wing and tail of n:o 3. A distinct difference from »A. 

 hijasciata» is that the latter is said to have »fulvous-coloured 

 upper and lower tail-coverts » (Menzbier: »Thelbis» 1884, p. 

 302) and that is not the case with any of these specimens 

 which I regard as glitschii. 



The length of the wing of n:o 2 is 615 and that of n:o 3 

 is 585 mm. 



The eggs of n:o 2 are, according to a communication 

 from Dr. O. Ottosson »of Aquila orientalis-tyipe, but larger. » 



Aquila nipalensis amurensis (Swinhoe). 



Narin 9 (n:o 6) 7g 1908. Tumutscheji $ (n:o 4) 7; 1908. Urga ef (n:o 5 



'V^ 1908. 



Length of wing in n:o 6 = 585 mm. 



» » » » » 4 = 600 » 



» » » » » 5 = 565 » 

 Of these specimens n:o 6 has a comparatively fresh 

 plumage and is dark brown all över closely resembling the 

 coloured fig. on »Tab. III» in Sewertzow's »Oeiivres posthu- 

 mes» edited by Menzbier in Nouv. Mém. de la Societé Impé- 

 riale de Moscou, T, XV Livr. 3 (Moscou 1885). N:o 4 and 5 

 are in moult the new feathers being just as dark as those of 

 the foregoing specimen while the old plumage is very much 

 worn and very strongly bleached to a påle greyish brown. 

 The undulations on the secondaries are more pronounced in 

 n:o 5 tha.n in n:o 6 and n:o 4, because the web of the seconda- 

 ries is paler in the former. The same is also the case with 

 the tail-f eathers ; they are much more conspicuously banded 

 in n:o 5 than in n:o 4 and 6. In n:o 4 a few new secondaries 

 have påle tips with a fulvous shade. Such påle tips are not 

 to be seen in the two others. The head of n:o 4 is already 

 covered by uniformly dark brown feathers. 



About the Eagles in general Mr. Bamberg has commu- 

 nicated that he usually observed them in small companies 

 from 6 to 8, always near water of some kind, where they 

 could sit motionless for hours. When they had got some 

 prey they usually perched on some small elevation. 



