His diet includes seeds, fruits and vegetables, and "meat"? What "meat" do you feed him? Meat should not be a part of his diet except maybe a treat very rarely, and his main staple food should not be seeds at all, but rather a high quality pellet diet with a very small amount of seed added.
That being said, if I'm being honest, your bird looks very, very unhealthy, and I'm going to try to be firm on this without being harsh...There are no "home remedies" that are going to help him until you know what is wrong with him. You can't treat what you don't know is wrong, and I would immediately, like ASAP find the closest certified avian vet to you and make an appointment for him. Take a fresh stool sample, and tell the avian vet everything you've told us. He needs blood work, a fecal smear, and to be tested for congenital diseases such as PBFD. I'm sorry but just by looking at him I'm guessing he's got some fairly serious health issues, I hope I'm wrong but I really don't think so, just from my own experiences.
He may be suffering greatly, he may be in physical pain and feel very sick, and this is what is causing him to pluck/barber. When birds get aggressive like he is about plucking and mutilating themselves, especially at such a young age, there's a reason. Birds instinctively hide all illnesses and pain as long as they can because in the wild they are prey, not predators. If they show that they are sick or injured they become targets for predators, and they often get left behind by their flocks. Captive birds still possess these instincts, and unfortunately, as many people that come to this forum find out much too late, by the time their bird starts acting like he's sick or in pain, he's been sick or injured for many months and they had no idea. So it's often too late for an avian vet to help them. They come on here asking for "home remedies" when there are none, and then they refuse to take their bird to a qualified avian vet, and the bird dies. I don't want to see that happen to you, and I don't want your bird to suffer any longer.
Plucking, barbering, and self mutilating in birds is a symptom of something very, very wrong with them, it's not the actual issue. The only way you'll find out what is causing your bird's behavior is if you get him to a certified avian vet immediately. I don't care if you have to drive 8 hours one way to get to a certified avian vet, this is what you need to do. I doubt there isn't one closer to you than that, if you tell us what city/town and state you live in we can find the closest avian vet to you very quickly. Often people don't think there is an avian vet anywhere near them and then we find them one immediately. I'm sorry, but if you just sit on this and keep trying to find cheap home remedies to get him to stop mutilating himself it's not only going to be a waste of time because most likely nothing is going to stop him but proper medical treatment, but the longer you fail to get him to an avian vet the less time you're going to have to treat him.
He could have something very easy and inexpensive to treat, like a yeast infection or feather parasites. It could be a bacterial infection that simply needs the correct antibiotic to clear it up. But these very simple medical issues cannot be treated and cured with home remedies, they require a proper diagnosis to determine the correct medication, and then they require that prescription medication. If your child started acting the way your bird is, pulling their hair out, constantly and aggressively scratching at their skin until they bled, would you get on the internet and look for home remedies? I don't think so. I think you would take your child to the pediatrician. And your child can speak to you and at least tell you they are in pain, that they don't feel well, and where they don't feel well.
Your bird can't speak to you, he can't tell you what is hurting him or what kind of sickness he feels. His aggressive self mutilating is the only way he can express to you that something is terribly wrong with him. He needs you to be a responsible pet owner and get him to a certified avian vet immediately, he's suffering. I don't want him or you to end up like many people that come to this forum for advice end up, simply because they refuse to listen us, the very experienced bird people that see birds needlessly die all the time because their owners won't get them proper care, usually for something very simple. And I'd hate to see his problems compound by the mutilated areas on his body also becoming infected with new infections on top of the cause of the mutilation itself. So there are multiple reasons he needs to go to the avian vet ASAP. Please tell us what town/state you live in and we will find the closest qualified avian vet to you.
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