The feathered thug

I've noticed recently that Mr Tripp has developed marks on his gorgeous little face. I hope he isn't poorly.  Looked online and it might be some sort of virus that can cause lesions. He is massively aggressive to other small birds though, and I know robins sometimes even fight to the death, so maybe he's just sporting a black eye. Hope he's ok. Whatever it is, it's certainly not affecting his appetite or his attitude... he's as hungry and cocky as ever! Bless him.