Recently, I adopted my late grandmother's cockatiel, Buster. Due to the circumstances of the situation, he was without food for no longer than a day. When I got him to my house, I noticed he had been molting quite a bit. I figured it was stress molting, given the fact that he didn't have food and suddenly found himself in a new environment surrounded by new people. I talk to him daily, he even cat-calls me when I enter the room. After a while, he started looking better; however, as of late, he has been looking worse. In addition, he's been chirping at my parakeets in a very odd manner. They like to sing to the radio, so more often than not, the radio is on and they're chirping away. However, Buster has started chirping at them immediately after they chirp. In addition, he spends a lot of his time on his food bowl.
Is this innocent bird chatter, or is this some sort of conflict? They aren't in the same room, would it help any if they were in the room together? While I'm worried about Buster, I don't know why he's behaving this way. I thought maybe it was because of hearing the other birds and not seeing them.
Something I also just thought of: he had a mirror at one point. He started stress molting because he thought it was a mate but wasn't getting the response he wanted. (At least that's what I was told). I dunno. Trying to provide as much information as possible as to get the most accurate answer I possibly can.
Sorry if this is a larger issue that I should contact a vet for, and I'm also sorry if this was the wrong board. I won't be offended should it need moving. Thanks in advance.