I went to see getting out from nest of Siberian Flying Squirrel (Pteromys volans) after birding of Mukawa and Yuhutsu. In this day, there were a few bird, so I gave up birding early and switched to watch flying squirrels.
And next one came out!
And next one, next one, and next one.......
In the end, 5 individuals came out from the same nest!
All photos in Tomakomai. 7/Feb/2009. No flash pictures.