Hehe, look at his moulty crest.

Sounds like he's being a hormonal male, i'm sure he'll grow out of his biting phase.
He's such a little devil at the moment, you just don't know when he's going to lunge to bite or step up!
When he bites, I tell him "Ah ah, that's not nice!" and put him onto his cage or something, I try to ignore him then for a couple of minutes so that he knows he's done wrong. He's still got quite a few pin feathers on him, so no doubt he's still feeling a bit sore in place. I'm trying so hard to make excuses for him. lol. I know deep down he isn't really bad, but at the moment, he's so unpredictable.
You said about his "moulty crest", I've kept the first feather that came out of his crest, it's in our treasures box along with his first tail feather. lol It's like keeping baby's first tooth. lol
Laurago: I bow down in shame. Maybe he's getting his own back now for saying he's a girl. lol. He says good boy a lot now, but occasionally we still get "Clever girl!" lol