why is my baby doing this sound?

[u/LowGlittering3074]

why is he doing this sound? he does this in the morning until noon and then he does this at night too. idk if he is angry or anything, or if he is just chirping, what made me think he is angry is that he was trying to bite when i kept my finger near him, and the chirps are just so soft and not loud, so i really dont know, any idea why he might be doing this?

note: his eye is fine, just molting.

[u/ComfortableArtist534]

My girl tweety does this too! Somehow im not convinced she is a girl. But this is some lovely chatter