I'm brand new here and don't want to ruffle any feathers

Normally I get my feelings hurt so easily. It is hard sometimes to read a message, you can't see body language, tone, attitude etc.
When I read
justwingingit's post, I too took the info posted that Buddy was doing well since he was "singing, whistling and talking" but then you stated that "I was able to get him out of his cage, albeit with some resistance."
I wouldn't go as far as to say that you "forced" the bird out, I wasn't there, but simply the wording that you used, without any other information, says that you got him out when he didn't want to come out.
It seems that he was not ready to come out so when you took him out it scared him, that was his safety zone, feeling safe enough there to be able to relax and sing etc.
He has been through a whole lot of sad things and just needs time to take it all in.
Giving him time, and space (personal space, not cage size space).
I do the same things each morning, I always talk to my Caique and usually open the little door right near the top, not on top, but like a little side door. Anyway sometimes he will just stay put, just doesn't want to get out. I can relate, I hate getting up in the mornings LOL. Sometimes he will go up to the top and just sit there, or when he is there, I turn my head and look back and he is at the top of my curtains. Sometimes he is so excited to get out that he plows me over to get to his playground. He is a little guy, I've had him for 3 weeks, right after being weaned.
I bet that it is safe to say that Buddy probably had to spend the majority of his days in his cage because of the issues with his family. I'm sure they hated not being able to spend a lot of time, and felt bad, but their family issues were enormous and came first.
When you took him home he was relieved of a lot of stress, you gave him stability, your place was calming so he thanked you by singing.
Me personally, just what I think, I would give him a big amount of toys. All kinds, he can take his stress, worries, etc out on the toys, and have fun taking his mind off the past.
1 last thing, were they able to give him a big variety of fresh fruits & veggies? Little tiny birdie muffins might make him love everyone :32:
Anyway, I've talked to long, take care and I wish you the best