I think Smidgy understands that's its him in some way 😊 I say that because usually if he sees another bird his crop goes up and he has a very obvious reaction. Here, he seems to be looking himself up and down lol crop is slick to his head so he's more inquisitive! I'm also in the mirror too so that might be helping him realise it's him. But if I left a mirror in his cage then yeah he very well could be convinced it's another bird. That's why you avoid mirrors as it effects your bond with the bird and triggers breeding behaviours. ❤