That is all one tree - half of it, of course, it is in the middle of a hawthorn hedge. A branch has grown rather too far down and we'll have to trim it, it would be a pity if a delivery lorry tore it off.
Last year, the acorns were stunted and misshapen, I don't know what happened to them, but this year they are big and healthy. There is one small seedling that we will try to keep, near the corner of the field where it will not be in the way, but usually they grow in completely unsuitable places.
There used to be three oaks alongside the drive. One died years ago, and it is that tree that fell over, blocking the drive, a year ago. The second one has lost its major branches and is still healthy, but in its declining years. I don't know how long this one has before it starts to diminish in strength, but it's magnificent now.