203 ACCIPITRES. 



Zool. Soc. 1845, p, 37) ; and in the same year from Japan as 

 Falco buteo japonicus and Buteo japonicus, in the text, and as Buteo 

 vulgaris japonicus on the plates (Temminck and Sehlegel, Fauna 

 Japonica, Aves, p. 16) . It is a fairly distinct race (though it appears 

 to intergrade with the Western race), and is entitled to the name o£ 

 Buteo vulgaris plumipes. 



The Eastern race of the Common Buzzard varies in length of wing 

 (from carpal joint) from 16^ to 13^ inches. The tenth primary 

 exceeds the primary-coverts by about 1^ inches ; in But aster indicus 

 by 2^ inches. 



Figures : Temminck and Sehlegel, Fauna Japonica, Aves, pis. 6, 6 b. 



The Japanese race of the Common Buzzard is probably only a 

 summer visitor to the Kurile Islands and to Yezzo, but a resident 

 in Southern Japan. There are several examples from Hakodadi in 

 the Swinhoe collection, and there are seven examples in the Pryer 

 collection from Yokohama. Mr. Ringer has obtained it at Nagasaki 

 (Blakiston and Pryer, Trans. As. Soc. Japan, 1883, p. 183), whence 

 he has sent many examples to the Norwich Museum j and Mr. Hoist 

 procured it on Peel Island, one of the central group of the Bonins 

 (Seebohm, Ibis, 1890, p. 103). 



The range of the Common Buzzard extends from the British 

 Islands across Europe, Central Asia, and Southern Siberia to Japan. 

 Examples from Europe and Turkestan difEer slightly from those 

 found in Eastern Siberia, China, and Japan. 



The Eastern form of the Common Buzzard is said to be always 

 distinguishable from the Western form by the greater extent to 

 which the tarsus is feathered, Adult birds are said, further, to differ 

 in having uniform brown tails without bars. 



188. CIRCUS CTANEUS. 

 (HEN-HARRIER.) 



Falco cyaneus, Linneus, Syst. Nat. i. p. 126 (1766). 



The Hen-Harrier is smaller than the Marsh-Harrier (wing from 

 carpal joint 15^ to 13^ inches). Adult males are easily recognized 

 by the pale bluish-grey throat and breast, but females and young 

 males are very close to those of the Eastern Marsh-Harrier. In 

 C. eeruginosus the 1st primary is an inch or more longer than the 

 7th ; in C. cyaneiis they are nearly equal. 



