Stocking up

Is this squirrel making a nest or just making the current one more cosy? I have no idea, but It's been busy like this for days and days.

Thank you for the kind comments for yesterdays photo, I was really proud of it and I'm glad you liked it too!

Edit: Quick question, does anyone have Zumba 2 for the Wii? Is it worth buying? Do you need much floor space?