Japanese Squirrel (Sciurus lis)

16 February 2019. Karuizawa–Shiotsubo Hot Spring Hotel, Nagano Prefecture,
Japan.

These small, long-eared, large-eyed tree squirrels are endemic to the
Japanese Islands. They are specialists in natural mixed-species forests and
pinewoods in subalpine areas, The amount of gray on the back and tail
varies seasonally with more extensive gray during the winter as seen here.
They are not particularly tolerant of humans and some populations have
disappeared after forest fragmentation or local urbanization. Canon
PowerShot SX60.