Distribution: Poorly known. Mountains and semi-deserts of West, Central and Southern Mongolia (including Gobi-Altai) ans North Central China (Helan Shan and Zhongwei region, in Ningxia-Inner Mongolia border).
Habitat: Thin scrub in semi-desert and dry mountains. No information on altitudinal range.
Food and feeding: No information on diet.
Forages in skulking manner close to or beneath bushes.
Breeding: Two records; nest placed close to ground; 4-5 eggs. No other information.
Movements: No information,although reported as returning to breeding ground near L Orog Nuur in mid-May.
Koslov's Accentor
This young bird has retained juvenile retrices on the right hand side
while changing the left hand side to adult shaped feathers,
probably as a result of accidental loss.