It was an interesting book, enjoy!
I will say that I have a Hahn's Macaw and they are usually sentinals in mixed flocks in the wild.
Jimi came to me from the breeder so I'm his only home. He would alarm call at many things, constantly. So I decided to teach him. Some things I decided were not scary and I would talk in a silly voice about them, like birds outside or changing piles of books by the chair, or pots in the kitchen that moved locations day to day. Other things I decided were scary (meaning an alarm call about them would be useful to me) so I'd growl and call at deer and elk and the FedEx truck.
I think since his BirdMom never had the chance to teach him, I had to tell him some things that were bad so he didn't have to worry about everything.
Worked pretty well, although he decided on his own that gnats on the ceiling must have someone (me) deal with them immediately.