His comments: The bird is a tricky case and I can't identify it. There is nothing that rules out European Honey Buzzard, even less that excludes a hybrid. On the contrary the structure of the bird's bill and legs are in favour of apivorus, so could well be a hybrid. Female EHB often have this kind of dark moustache, which is not the same as the full gorget in most CHB.
So in the end the identity is not determinable, but either a EHB or a hybrid EHB/CHB