You know what? I think..........Baybi wants a mate.

That is what females do when they want to 'mate'....crouch down, flap a bit sometimes, and make those funny squeaky sounds.

Sorry for the embarrassing reply, but I really think that's it. He he he...I hope she's not intending to lay eggs. I would think she's still young for that though.

Can you make a video of her doing it in the 'light' so I can see what she's doing better? Its most likely that, but it could 'possibly' also just be her own silly way of singing.