I lost my darling budgie after 6 years through illness, he was so wonderful, loving and had such a great character. He started off just like yours has and I think 6 weeks is a little too early for them to be taken away, they must find it so frightening. So pleased to hear he has perked up, hope it goes really well for you and him, ours was always in and out of his cage as I hate to see them caged up. I miss him so much, he used to come over and "kiss" me and talk lots he was wonderful I never knew they were so intelligent and knew what you said. I'm sure you will have many wonderful years with your new little birdie, wish I could have another one but after the trauma's and many vets we visited with him I just couldn't face it all again nor put another bird through that. Good luck with him he'll be settling in very soon now.