Red Kites are not really "birds of prey",as they are more likely to cruise the skies looking ever downwards ,searching for "roadkill" and other carrion. So they're more like Vultures, although there are now so many (too many) of them around,especially in Oxfordshire & Buckinghamshire,that it has been suggested that they may well be "evolving " into something more like a true predator,in order to survive . Fascinating stuff,and and an interesting insight into evolution and its causes ! Hamsters beware !