I was trying to "think like the flock", but didn't quite get it right, I see. I think for now I will just keep doing the five minutes of clicker training but scale it back to twice a day, with the goal of letting praise and head scritches be his "treat" (saying "good boy!" and scritching his head after the click and before the treat", since he does let me pet him already). I'll spend the rest of the time just hanging out with him.
He's currently next to me in his cage chattering away. I'm having fun replying to him because he doesn't actually say words, so the content "conversation" is getting pretty silly.