Well, the funny part is, after hanging out with me for two hours, I tried to set him down, and he latched onto my arm with both feet (not hard enough to hurt, but hard enough to frustrate any attempt to remove him from my arm), and his beak, and did the "WE SHALL NOT BE MOVED" number...
Getting him to go down became quite problematic. We finally did succeed in bribing him off with something, but for awhile there he just wasn't having it.
And that was my introduction to Hyacinths...
I became something of a favorite toy for that bird. If he was out, he was coming to see me... taught me every macaw game he knew. And I used that knowledge with some of the other birds I worked with, and taught those games to them...
They still work...