Its back is ash gray washed with brown, while the underside is whitish gray. Reproduction has been studied in mountain tundra in Yakutia.
A 2025 literature comparison describes the back as ash gray washed with brown, the underside as whitish gray, and the tail as bicolored, blackish brown above and gray below.
Records from the Kharaulakh Mountains show overwintered females breeding once a year, with young born in the second half of June and about seven young per female by late summer.
An extinction-risk assessment has not been added yet.