The bird I saw could have been a juvenile, which would account for the fluffiness of the feathers. It looked a bit like a chick. It was quite big and I thought about the size of a pigeon, maybe bigger. The beak was black and the tail was black and white. I think there was a small crest on its head.
It was standing in the orchard, which is quite overgrown at the moment and when I got nearer, I thought it might be injured as it flew away, but only a few feet. Then again a few more feet, but into the trees and I couldn't follow it. I was trying to get close enough to snap a photo, but didn't succeed. Any ideas of what it could have been? It was about late afternoon.