Solly is a male, one year old in January. He was the sweetest parrot ever. He never bit someone before. But in August, my brother came to visit me and it looked like he was jealous. He was attacking him for no reason. After that I went to my brothers house and it appears that Solly knew it wasn’t his house and he was extremely well behaved all the time. Later, he started getting mad at the other parrot grabbing his food. And about a month ago, he started attacking me every time he sees me with a bottle, perfume or if I was opening a package. I thought that it was the noise that he didn’t like. But a few days ago, he started attacking me everytime he sees me or anyone grabbing something, even if it doesn’t make noise. If he sees we have something in our hand he attacks. He is always watching us like waiting for us to grab something and attack. I do not know whats wrong with him and why he started doing this. Any advice on how can I correct this behavior?He became very aggressive every time I grab something.