New cockatiel is trembling
I just got a young cockatiel today, he seems content (Crest down, grinding his beak, sometimes napping) But he occasionally trembles and he has a puffed-up look. Is he just cold? His tail feathers are also ragged, but the people we bought him from just said young birds were reckless with their tails and it's just from running around the cage and hanging out.
He isn't picking at his feathers as far as I can see. Overall he seems healthy, but very scared of me especially when my hands are near him. I'm scared I've ruined our relationship forever. Thanks if you can help!