Hello, Name is Josh and I'm new here. 3 days ago I bought my first ever bird, a Cockatiel Male (Zazu, 10 months old). I have had him home for 3 days now, I had him in our living room where he was around my wife, myself and our 3 kids. He is now in my office with me during the day while I work. I am a little concerned about him. We have not heard him make a single noise and he really doesn't move around much at all. He is eating and drinking and he will get on my finger but really wants to just go back to his cage. He seems to be puffing up his feathers a lot and shaking. Is this all normal, and is there anything I should be concerned about yet. Thank you in advance.