Hi, I have a GCC chick, 4.5 weeks old. He is starting to take less at each feeding (fed 4X/day). He has a strong feeding response initially (bobbing), mouths occasionally (like swallowing/tonguing like adult, which I've read is normal in slow hand-fed birds), then after about 5-7 cc's, usually backs up and sometimes squawks when I attempt to give him his syringe. I usually stop feeding him at this point for fear of forcing him, and will either feed him at his next scheduled feeding or give him a few cc's a few hours before it. (His breeder feeds his sibilings 10 cc/feeding, 4X a day. She shoots the food in quickly and some of it will flood/dribble out of their beak). My spouse also feeds him, and noticed once, after some playtime, he was more receptive to his feeding. He is also sometimes more receptive when you give him a couple of cc's at a time during his feeding, over the span of 5 minutes. My question is what to do? Otherwise, he has healthy behaviors (preening, sleeping, flapping, exploring). He is around 83 g. The only potentially concerning behavior he has is his vocalization. Conure chicks have this croaky squawk, but he does it a lot sometimes when we handle or touch him, occasionally even doing what seems to be biting us when we approach him (like an angry squawk + lunge, doesn't look like beaking at all). Other times he is happy to be picked up, will nap in our hands and waddle towards us and try to climb into our hands and over our body. Is this normal?