40 ARKIV FÖR ZOOLOGI. BAND 5. N:0 9. 



the primaries form another dark patch contrasting to the 

 white of the proximal parts of the quills. 



The specimens agree on the whole with Blyth's original 

 description ^ of Arckibuteo hemiptilopics, although the type 

 of this was somewhat darker below and had even the vent 

 and lower tail-coverts brown. This name has been made 

 synonymous with A. strophiatus (Hodgson) the t3rpe of which 

 is figured by Sharpe in Cat. Birds Brit. Mus. I Pl. VII fig. 

 2 and it is possible that this will prove to be right, although 

 the type of strophiatus is a very much darker bird, and it 

 Avould be of interest to see some intermediate hnks. Tacza- 

 NOWSKi has identified this roughlegged buzzard with »Buteo 

 hemilasius Temminck & Schlegel» and accordingly used 

 the latter specific name in his work on the birds of Eastern 

 Siberia (1. c. p. 60). The figure in »Fauna Japonica» does 

 not, however, show an Archibiiteo as the tarsi are naked in 

 front in their lower parts, although the authors call the bird 

 a »buse pattue» in their description. The bird which Tacza- 

 NOWSKi has so well described in his repeatedly quoted work 

 under the name >>Archibuteo hefnilasius» is, however, identical 

 with the one treated of here. 



Not many years ago Schalow^ partly worked out 

 the synonyms of this Buzzard. 



It has generally been assumed that this Buzzard didnot 

 breed so far south as in Central Asia but the fact that these 

 three specimens have been collected by Mr. Bamberg in 

 May, June and July seems to indicate that it really breeds 

 in Northern Mongolia. Taczanowski quotes also (1. c. p. 63) 

 Godlewski saying: »Il niche en Daourie dans les steppes 

 des environs de la riviére Onon et plus abondamment aux 

 environs de TArgoun» . 



Buteo plumipes Hodgson. 



Bogotai ö" (n:o 20) -^e 1908. 



Length of wing about 370 mm. 



Accipiter nisus (Linn^us). 



Kjachta ef (n:o C6) ^75 1908. 



Wing 216 mm. 



^ Journ. As. Soc. Beng. Vol. XV p. 1 Calcutta 1846. 

 2 Journ. f. Ornith. 1901 p. 421. 



