Mystery Death

I discovered my Scarlet Chested male dead today. He was a recent addition to my aviary and fathered two young recently. He was on an upper branch facing outwards with a tuft of feathers missing on the back of his neck. I suspect attack from a bird exterior to aviary such as butcher bird, the death must have been instant as he did not even have time to fall from the branch...He will be missed he was not only a good breeder but he was also had a lot of personality, with a bit of luck he may still father some further young but I will still need a new male to replace him.