Kozlov's Accentor

Kozlov's accentor is a small bird of dull brown plumage, 15.5 centimetres long with a bill of about 1 centimetre, a tail of 6.5 centimetres and a tarsus of 2 centimetres; the wing is 6.65 centimetres in the female and 7.3 in the male, and the average weight is 17.5 grams. The upperparts are pale buff with distinct dark streaks on the back and subtler ones on the head and nape. The head is brown with a black bill, the throat grey and the breast cream bordered with brown. Just after the moult, narrow white or cream fringes mark the wing, throat and breast feathers. (French Wikipedia, general species account)

Nikolai Przhevalsky described it in 1887. It lives mainly in Mongolia, in semi-arid mountains, and also in Ningxia, the bordering region of China, in the Tengger Desert and the Helan Mountains. It is discreet and thinly spread, and is the least known of the accentors: very little is known of its behaviour, diet or breeding. (French Wikipedia, general species account)