We were looking at a male great spotted woodpecker (red at the back of the head) in the old tree by the farm.
It was digging into a branch looking for grubs. Then it looked up turned its head to the left and to the right.
It was all clear so it then slid down the branch and started again.
Dig, look up, look left and right, and then slide down. This was repeated several times before it reached too low on the branch.
So off it flew – it'll be back, no doubt.