Weaning trouble

Milo is about 10 weeks old and, until yesterday, was on 2 hand feedings a day. Yesterday, at my breeder's advice, I ommitted the morning feed and only gave his evening feeding. She suggested this because I told her he has not shown any interest at all in real food. I have supplied many options and even tried pretending to eat it or letting him eat from my hand. Hasn't touched it. Literally won't even look at it. It's like he doesn't know its food. She said he was beginning to show interest and pick at his fresh food when he was still there so this seems quite odd to me. Anyway, he was starting to lose interest in his morning feed so she told me to go ahead and stop it for a few days and see how he does. If he loses too much weight, we will add it back in. The problem now is that he literally begs non-stop. Any time he can see myself or my husband (who has never even fed him), he starts doing the begging sound. This includes when he as already eaten and is full. I am not kidding, it is non-stop unless we put him where he can't see us. It's becoming quite a problem because the sound drives us up a wall when it's non-stop like that. We can't have him out with us because he won't stop. I've done everything I can think of to comfort him and it doesn't work. Keep in mine that I have hand fed and weaned other babies before so it's not like I'm a total stranger to this, just new to a pi. I know they are different and can be complicated to wean, but has anyone heard of this particular trouble before?

You are force-weaning the bird, which is bad for it's mental and physical development. The fact that a breeder gave you an unweaned bird is always a huge red-flag.

Stop force-weaning and go to an abundance wean. A bird like a Pionus takes 13-15 weeks to wean, but it varies by the bird and may be longer/shorter. Let the bird inform you when it wants to wean. Read this article thoroughly and be attentive to the bird.

https://theparrotuniversity.com/arthandfeeding1

Remember: You do not control when the bird weans, the bird does

EDIT: Go back to two feedings. The fact that it was already at two feedings at 10 weeks is a good sign; that is a natural progression rate that means it is on a normal weaning schedule for a Pionus. Keep it at two until you see it eating more food/pellets. Keep offering it different food types, and feed it food by hand as much as possible. The morning feeding is always the hardest to get past, but once it is eliminated (and the bird is cool with it), the night feeding disappears usually within a week or so. You are probably still at least a few weeks out from eliminating the morning feeding however, especially since you interrupted the feeding schedule with an attempt to force-wean.

I agree you are force weaning right now. Since the bird wasn't weaned when you got him I'm not surprised that the stress of going to a new home made him lose interest in 'real' food. Even birds who a breeder has weaned can sometimes revert to wanting formula after going to a new home.

I agree with everything you have been told. A baby should never ever stress over food. If he is begging, feed him. Would you ignore a hungry human baby? Of course not, the breeder is wrong and unfortunately force weaning is common in many breeders then they perpetuate that bad practice by telling others to do it.

I wasn't allowed to take my baby pi home till he was 16 weeks old. He was a big cry baby too. Now he is so quiet... For a parrot!

Raven was about 16 weeks old when full weaned. I'm sorry you're having to go through all this instead of getting to just enjoy your new baby. Any updates?

Sorry for the delay. Yes, I have an update. First off, I trust my breeder. They are very knowledgeable and experienced and have been breeding wonderful birds for 30+ years. I have bought from them before and they gave nothing but wonderful, helpful advice. I do appreciate the responses, but what they told me DID work. He did the begging thing constantly for about 2 days. I was monitoring him and his weight the whole time. I observed him eating real food which he has continued to do in increasing amounts daily. He is still doing 1 hand feed a day but I suspect that will be over soon as he isn't eating much of the formula now but is eating lots of real food and continuing to gain weight. I truly think the begging he was doing had nothing to do with food. He was doing it even with a full crop. It really seemed more like begging for comfort rather than food. He loves to burrow under the throw pillows on the couch and I have observed him doing the begging sound when he can see the couch and wants to get to it. He will immediately stop when he is able to snuggle in and feel secure. He is doing very well now and the begging rarely happens now. He is happy, healthy, and adjusting well to life with us.
Now, I would like to express my feelings on something. I did not appreciate the tone that I felt was conveyed in some of the responses. Maybe I am taking it the wrong way, that's totally possible when something is typed rather than heard. However, it felt a bit like I was being berated. I do have prior hand feeding experience and I know about force weaning. I also have 100% faith in the breeder I got Milo from. I just don't appreciate being talked to like I'm an idiot with zero experience and that my breeders are bad at what they do for sending me home with an un-weaned bird. They do not do this unless they feel that the person taking the bird is capable, which I am. They also have you come in for a follow up a week later to be sure that the feeding is going well and weight is good. Sorry if this sounds hateful, as it is not meant that way, but this just really bothered me and it kind of makes me not want to post next time I have a question. So I felt I had to say it.