. 338 . MR. R. SWINHOE ON THE BIRDS OF CHINI,- - Quay 2, 



*". * 



^2'. VuLTufcVoffACHUs, L. ; Ibis, 1867, p. 413. 

 /J .. : Tfterfc : ar4 Speqirnens of this Vulture in the Peking Museum, 

 * 'proruretTb'y "Pere David from the mountains in the north-west of the 

 Chelee Province. 



3. AQUILA CHRYSAETOS, Cuv. ; P. Z. S. 1870, p. 443. 



Eagles were several times seen by myself in the Nankow Pass, on 

 the road from Peking to Mongolia, but I was not able to determine 

 the species. Pere David identifies the resident species of these moun- 

 tains with the Golden Eagle, and mentions meeting with a large 

 variety, with longer bill and white tarse (" Catalogue des oiseaux a 

 Pe'kin," Nouv. Arch, du Museum d'Hist. Nat. de Paris, tome iii. 

 1867), which Mr. Gurney tells me he has seen from Denmark and 

 also from Algeria. Mr. Gurney adds that " the specimens were in 

 other respects in the usual plumage of the second year. The Danish 

 examples were certainly large and fine, the Algerian not particularly 

 so. At present I have seen no sufficient difference to make me think 

 that there are two species or races of Golden Eagle." 



4. AQUILA BIFASCIATA, J. E. Gray. 



Aquila heliaca, P. Z. S. 1863, p. 259 ; Ibis, 1865, p. 347. 



Mr. Howard Saunders has demonstrated to this Society * that the 

 eastern form of Imperial Eagle differs, in its first plumage at least, 

 from the European bird, and is apparently a distinct species. M. 

 Milne-Edwards refers to Dr. Gray's name a bird sent from Pekin 

 by Pere David, on which the Abbe' remarks, " common on our moun- 

 tains and in Mongolia." This species has been shot in the imma- 

 ture plumage in winter at Foochow ; and I have noticed it in adult 

 plumage with white scapulars on Ape's Hill, Takow, S.W. Formosa. 



5. AQUILA AMURENSIS, sp. nov. 

 Similis A. clangse, Pall., sed major. 



M. Milne-Edwards identifies the Tawny Eagle from Peking with 

 A. clanga of Pallas ; and Pere David notes the occurrence also at the 

 same locality of the smaller allied form, A. ncevia, Briss. A speci- 

 men from the Amoor, kindly sent me by Dr. v. Schrenck, is of large 

 size, and, in Mr. Gurney's opinion, worthy of separation as a third 

 species of this group. I enter this in the present list under the sup- 

 position that it will be the same as No. 5 of Pere David's catalogue, 

 which he also states to be " common in our mountains and in Mon- 

 golia." Mr. Gurney very obligingly compared the Amoor specimen 

 with a female of Aquila clanga from Sarepta, on the Volga, and has 

 given me the following measurements : 



Entire Wing from Middle toe 



length. carpel joint. Tail. Tarsus, without claw. 



A. clanga $ (ad.)... 31 in. 23 in. 11 in. 3^ in. 2iin. 



A. amurensis ? (ad.) 33*,, 26$,, 12 4J, f 2$,, 



Mr. Gurney writes : " In plumage, I do not find that it differs 



* See anted,, p. 37. 

 [2] 



