Hi, I just had my new Eclectus shipped to me. One is doing great but the male keeps shivering. It is a slight tremble in his breast feathers. I was wondering if this is normal for bird that have gone through the stress of shipping or is it something I need to look into more. He is eating and drinking but has mostly sat in one place since I put him in his cage 24 hours ago. What should I do? Thanks!