The temperature rose above 0C (32F). My friend and I weren't the only ones enjoying the warmth of the sun. This little guy chattered at us until we found where he was located. Then he kept an eye on me as I took his photo.
The squirrels were taking advantage of the weather to forage for food. It has not been a winter for long hibernation. While Eastern Europe freezes, we have had a warm and weird winter.