The Red Kite:

Also known as Milvus is a medium-large bird of prey in the family Accipitridae, which also includes many other diurnal raptors such as eagles, buzzards and harriers. It is a European rare species which is resident in the milder parts of its range, but birds from northern and central Europe winter further south and west. It is 61–72 cm long with a 175-200 cm wingspan. It is an elegant bird, soaring with long wings held at a dihedral, and long forked tail twisting as it changes direction. The call is a thin piping, similar to but less mewling than Common Buzzard. This species nests in trees, often close to other kites. In winter, many kites will roost together.