BRITISH BIRDS. 119 



GENUS LXXXVIII. ARCHIBUTEO, Brehm (1828). 

 Bill and appearance approximate more to Aquila than 

 to Buteo. Tarsus feathered to origin of toes. 



165. A. lagopus (Gmel.) ROUGH-LEGGED BUZZARD. 

 Hab. Northern Europe and Western Siberia. 



May be easily distinguished by the feathered tarsus ; it 

 is larger than B. vulgaris, and the adult has a conspicuous 

 blackish-brown patch covering centre of abdomen, the rest 

 of under parts being chiefly brownish-white ; tail also 

 shows only two or three dark bands on its terminal half, 

 the base being nearly white. Length : male 22*50 ; 

 female 24*50; iris hazel in adults but yellow in immature 

 examples. 



An irregular, but probably annual, winter visitor to the 

 east side of Great Britain but rarer in the west ; in Ireland 

 seven or eight examples in all have been taken. 



GENUS LXXXIX. AQUILA, Brisson (1760). 

 Bill moderate, stout, upper mandible nearly straight at 

 base, terminal half much decurved and hooked, cutting 

 edges slightly waved but not toothed. Tarsi clothed with 

 feathers down to origin of toes, which are reticulated 

 above, excepting last joint which is covered with three 

 broad scales ; claws large, hooked. 



166. Aquila maeulata (Gmel.). LARGER SPOTTED- 



EAGLE. 



Hab. Central and S.E. Europe ; also S.W. and Central 

 Asia. In winter reaching Abyssinia. 



Two examples have been taken in Ireland (1845), two in 

 Cornwall (186061), one in Lancashire (1875), an< ^ one m 

 Northumberland (1885). It should be said that a smaller 

 form exists under the name of A. n<zwa (more correctly 

 A. pomarina of Dresser), inhabiting Germany, Poland, 



