Greater Spotted Eagle

My luck was in today, no wonder there were no ducks on the lagoon today! This really big Greater Spotted Eagle landed nearby with evidence of a bird kill. Can you see the evidence? I think that the 'evidence' is either from a pigeon or a grey heron. Anyway he looked magnificent on a rather bendy branch and this was taken while he tried to balance, the extra is him waiting for me to take his portrait.