For the first time, I wrapped my balcony plant pots in wool/hessian blankets this winter (2020/2021). We have squirrels living in nearby trees, who often visit the balcony. Once spring began and the snows had gone, the squirrels started trying to pull the blankets away from the pots. They can still access the soil in the pots - which they are happily digging in - so I can't understand why they are trying to remove the blankets. They focus mostly on the hessian blankets (wrapped around the olive tree and lavender), so much so that one blanket now has holes in it.
Can anyone explain why they are doing this?