Can you tell me whether this tame bird I photographed in Kent is an escapee?

QThis bird has been around for a few days, a few miles from Canterbury in Kent. It seems very tame. Could it be an escapee? Les Irvine

AAt first sight this looks a good bet for being a young Rough-legged Buzzard – the pale head and breast, the pale area on the wing, and the very white undertail are all good ID characteristics, or it could be a pale Buzzard. Unfortunately, the grass is obscuring the bottom of the legs, so we can’t see exactly how far the ‘trousers’ extend (or whether the birds has any jesses, which would indicate it was an escaped falconers’ bird). Rough-legged Buzzards aren’t much used by falconers, though. At least one juvenile Rough-leg was seen around Kent late last year, so perhaps this is one of them. The jury is still out on this one.