Is this an owl?

I was walking the dogs in Cannock Chase this week, when I came across this bird sitting in a tree above me.

The bird is about 18-24 inches long and sitting quietly on the branch. Apologies that the picture is not clear. It was early morning and the light was not great. But it is clearly a bird of prey of some kind, and I found it unusual that it would not fly away when it saw me and two noisy dogs.

Apple photos tells me that it is a long eared owl. The size is right but to me it does not appear to have long ears and the head shape is more like a falcon or a kestrel. But it is too big for them, and too small for an eagle. Having googled identifying birds of prey, I wonder if it could be a buzzard. If you have any clue, please let me know. And why was it not scared of me?

It is a week since we moored up for the season. We are still living on the boat because our new house will not be ready for another couple of months. But we do have a car, which is a treat after living without for six months. And it does allow me to go to places like this. Perhaps learning to live a slow pace of life on a narrowboat also frames my mind to notice things more like this bird. But what is it?