My brother got a male cockatiel for his birthday a day ago, I'm not sure if it was hand fed or not, but I'm going to guess no for now. Well, it was fairly quiet and well behaved at the pet store, but when we brought it back home, all it did was make extremely loud screeching while walking back and forth on its perch in the cage. Thing is, it's been doing that all day that day (literally, nonstop) until night, when it went to sleep. My brother's ears have been ringing since then.
This morning we took the cover off it's cage, and shortly after it started doing it again - from early in the morning until now (3:50 PM), nonstop. I've tried talking to it a bit and making whistling noises, but that only seems to keep him quiet for a very short amount of time.
I was reading that this can be due to the 'tiel being unfamiliar to it's new environment, should I leave him be for a few days first to let him become familiar with the environment, then start interacting with him? I'm not sure what to do now, I've read many different things people've said to do but he doesn't really respond to any of them. He also hasn't started hissing or biting either.