Originally Posted by echinosum

They have become a common sight along the M40 in the Chilterns, especially around Stokenchurch. And out into the Oxfordshire plain too, and I've seen them as far west as the Oxford/A40 exit. I can't remember the last time I drove to Oxford in daylight without spotting one. I think most people don't even realise what they are looking at. We see them so often we recognise them immediately. I live out in the fields, but you can see them even in the town centres. A friend in Amersham saw 8 at once out of her window the other day.