During Lockdow we were only allowed an hour's exercise a day, so I used to go out round the local streets, taking a different circuit each day.
This particular day the weather wasn't great but I took my camera anyway, just in case.
On the other side of the road, was two lots of houses and a row of trees at the back of the gardens. I spotted a flock of 'black' birds flying round and they landed on a tree. Too far and the bins were no good to ID them, but thought they'd be Rooks.
However, when I downloaded the pictures, I saw that all the pairs were actually Jackdaws, but flying past them is a Rook.