27. BUTEo. 183 



latter slightly margined with rufous; greater wing-coverts brown, 

 tipped with whity brown ; upper tail-coverts tipped with white and 

 a little barred with pale brown near the edges ; head white, the 

 centre of the crown dark brown, the feathers of the head and hind 

 neck margined with rufous ; sides of face white, the cheeks streaked 

 with brown, as also the upper margin of the ear-coverts ; under 

 surface of body white, the centre of the breast entirely so ; lower 

 throat and breast longitudinally marked with pale brown, somewhat 

 margined with rufous on the feathers of the latter ; abdomen clouded 

 with ashy brown, the thighs entirely of the latter colour, a few of the 

 longer feathers spotted and tipped with white ; under tail-coverts 

 white ; under wing-coverts dark brown, washed with rufous and 

 ochre, the carpal ones for the most part white; quills brown, 

 secondaries light brown like the back, and inclining to whitish ashy 

 along the terminal margin, the primaries externally shaded with 

 greyish ; all the quills white at base and for the greater part of the 

 inner web, irregularly barred with dark brown, more plainly on the 

 inner web ; tail ashy brown, tipped with white and crossed with 11 

 or 12 bars of dark brown, disappearing near the base, where all the 

 feathers are white, which encroaches on the middle feathers ; the 

 inner webs of aU the feathers for the most part white. Total 

 length 24-5 inches, culmen 1-7, wing 19, tail 11, tarsus 3-55. {Mus. 

 Liigd.) 



Hah. Eastern Siberia, Northern China, and Japan. 



a. 2 ad. sk. Dauria, April 18, 1873. Dr. Dybowski [CI. 



b. Juv. sk. Shanghai. E. Swinhoe, Esq. [C. j. 



The types originally described were two in number ; but more re- 

 cently Prof. Schlegel (Revue, I. c.) has referred the male to Buteo 

 plumipes, and in this he is apparently right. I subjoin the descrip- 

 tion I made of this supposed male of B. Tiemilasius in the Leiden 

 Museum : — 



Male. Altogether darker brown, apparently not so bleached ; the 

 eyebrow white and also the ear-coverts, causing the brown cheeks to 

 stand out in bolder reUef and appear like a broad moustachial streak ; 

 under surface of body white, the chest and entire thighs and under 

 tail-coverts white, the throat narrowly and distinctly barred with 

 dark brown, the streaks on the breast paler brown and less defined ; 

 flanks entirely brown ; tail uniform brown, paler at the tip, with 

 remains of darker brown cross bars ; the under surface white, 

 as also the base of the tail above, but not spreading on to the 

 centre as in the female. Total length 20-5 inches, wing 10, tail 10, 

 tarsus 2-9. 



B. hemilasius may be regarded as a gigantic edition of B. plumipes. 



11. Buteo brachypterus. 



Buteo brachypterus, Peh. in Hartl. Faun. Madag. p. 1 (1861) ; id. 

 Verh. z.-b.' Wien, 1862, p. 145 ; Roch 8f E. Ketct. Ibis, 1862, p. 267, 

 pi. viii. ; Schl. P. Z. S. 1866, p. 420 ; Schl. ^- Poll. Faun. Madag. 

 Ois. p. 44 (1868); Gray, Hand-l. B. i. p. 6 (1869); Gurney, 



