BEREZOWSKY'S NORTHERN BLOOD PARTRIDGE 



Ithagenes sinensis berezowskii Bianchi 



Type.— " Satani on the Sigu River," Bianchi, Ann. Mus. Zool. l'Acad. St. Petersb., VIII. 1903, p. 1. The 

 types are in the Petrograd Museum. 



Geographical Distribution. — Highlands of the Blue River region. Southerly part of Kansu Province 

 (in the vicinity of the villages Dzjujuan and Satani on the Sigu River in the district of the same name). North- 

 western part of Szechuan (Choazigon Valley in the vicinity of Lungganfu, Sungpan, Tungpei and Yanglinpan). 

 Southern slopes of the Tsinling in the southern part of Shensi (Hing kogu near Han tschungfu). 



Subspecific Characters. — Male : The wing-coverts are cinnamon or chestnut (not golden yellow), 

 entirely free from green pigment, but with abundant carmine red. On the dorsal shaft-stripes the green appears 

 only on the posterior rump and upper tail-coverts. The crimson colour on the margins of the rectrices is very 

 strongly developed. The general tone of the plumage is dark. This is the smallest form, the wing measuring 

 187-209 mm. 



Female : Sides of the neck brownish (not cinnamon or clear grey) ; hind neck brown, concolorous with the 

 interscapular region ; feathers of the occipital crest quite a distinct grey ; prevailing colour of the lower surface 

 obscure cinnamon. No crimson on tail-feathers. Smallest form, wing measuring 178-195 mm. 



The first specimens of this form were obtained by G. N. Potanius on an 

 expedition to Kansu. Later, when others were obtained from northern Szechuan, 

 and it was found that there was a decided difference between these individuals and 

 those from adjoining regions, Dr. Bianchi separated them. The most important 

 character is the cinnamon or chestnut wing patch, instead of the golden-yellow of the 

 other sinensis forms. 



Ithagenes sinensis berezowskii Bianchi 



Ithaginis sinensis Berezowski et Bianchi, Aves. expedit. Potanini, 1891, p. 15 (partim) ; Styan, Ibis, (7), V. 

 1899, p. 298 ; Dresser, Ibis, 1905, p. 152. 



Ithagenes sinensis Ogilvie-Grant, Cat. Birds, Brit. Mus., XXII. 1893, p. 270 {partim) ; Ogilvie-Grant, Hand- 

 book Game Birds, I. 1895, p. 219 (partim); Deditius, Jour, fur Orn., 1897, p. 62 (partim); Ogilvie-Grant, Ibis ( 

 (7), VI. 1900, p. 606; Dresser, Man. Palae. Birds, II. 1903, p. 675 (partim) ; Baker, Ibis, 1915, p. 126 (partim); 

 Baker, Jour. Bomb. Nat. His. Soc, XXIV. 1916, p. 401 (partim). 



Ithaginis sinensis berezowskii Bianchi, Annuaire du Mus. Zoo. l'Acad. Imp. Sc. St. Petersb., t. VIII. 1903 

 pp. 1-10 ; Bianchi, trans, of above, Jour, fur Orn., LI I. 1904, p. 74. 



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