That's a neat trick with the bowls! The vet said on our initial visit (the day after I got Timber) that he was a little underweight, which has always worried me. Unfortunately, she didn't weigh him. He was so wild at that point that they had to restrain him with a towel to do anything, so maybe it wasn't possible. So, I don't have a baseline. Her comment was based on the fact that his breastbone (wrong word I know) was too prominent. And she did say that he was a small bird even for a TAG. Now, his "breastbone" isn't as obvious so I know he's picked up some weight. I really wish I had a baseline so I would know how much he has gained. He is a very picky eater, and though it shames me to say this his primary diet is nutriberries and avicakes. I tried many brands of pellets, and he just doesn't eat them. Fresh food (the kind that is good for him) is a no go unless I feed them with a spoon. He doesn't seem to like anything hard (except nuts and some seeds) which I suspect is why he won't eat pellets. I've tried soaking them, but he doesn't want them that way either.
I don't have a problem with him being "small" but I do want to make sure he is a good weight for his size!