Sup /an/?My finch is having some problems with his tail feathers. They are coming out, but I don't know if they're falling out on their own or if he's plucking them. The feathers he still has covering his poor naked butt are small and broken and ratty, and I have no idea what's causing it. I recently moved him from a very small cage into a very large cage, and at the moment he's all alone without another finch for company, so I'm thinking it might be stress related, though I'm not sure. Help?