My cockatiel Rocky is super aggressive towards everyone, including myself. He seems to hate hands, if I stand by his cage and bring up a hand to scratch my face he'll lunge and start hissing. However, when I put my hand into his cage, he rushes over and starts to hump my hand. I'll try to put him down but he just hops back on and tries to continue. I don't know if he would do this to anyone else, as everyone in my family says his bites hurt too much and they're scared to try haha. I've tried looking online for this, and most things say things like "he's bonded to you" but he has never let me do anything and hisses at me when I walk past his cage! It's winter right now and I thought mating season was in the spring, so I'm also confused about that? How can I go about preventing this behaviour and actually start taming him? I can't even try to feed him millet as he ignores it and goes straight to my hand. Any help would be appreciated !!!