My old friend had a Cockatoo who lived with them as a kid, but wasn't captive at all. He just chose to spend his time with them after they found him orphaned an

My old friend had a Cockatoo who lived with them as a kid, but wasn't captive at all. He just chose to spend his time with them after they found him orphaned and took care of him for a while. He would disappear for a day or two and come back, and he would follow my friend to school and hang out around the classrooms waiting. The teachers would try to shoo him and he would rage against the machine, they are loud as hell. Appropriately, his name was "Rowdy". "Cockatoos... producing an average of 120 decibels and loudest of 135 decibels of noise. The loudness can be judged by looking at the noise level of 140 decibels of a 747 Jumbo Jet."