Okay, just a couple of things to cover today.
Firstly, his tail feathers. The main feathers are estimated 6-7 weeks old. The smaller fan feathers are estimated 2-3 weeks old (at the time he lost them). So we have a period of 3-4 weeks where he was manhandled and lost them, about 4-7 weeks ago. His age is estimated at 11-13 months. And that's the bad news.
Life is getting more interesting for Roger. His PBFD test has yielded some interesting results. No sign of any virus, but he does carry antibodies to the 2 main causal viruses in the UK. Given his age he has not contracted the viruses himself, the antibodies were passed in the yolk.
So I thought he had PBFD when he's protected against it. It is probable his mother had it. Go figure. It certainly takes a lot off my mind
Had his first face-to-face meeting with Tau today. He looked at Tau, got a little closer and watched him, got a little closer again. As soon as they were a few inches apart Tau hissed and lunged and Roger backed away. He seemed upset/disappointed. Roger is HUUUUUGE at the side of Tau, but Tau has the upper hand for now. I put it down to Roger still being juvenile - it's something to watch for in the future.