After living with my cockatoo since she was a week old, I feel I know her pretty well. We've lived in a variety of situations and I have flown her in a variety of places, inside and out. Almost every time she has flown unrestrained outside it has been unintentional, usually because she has unfastened her harness. My heart stops until she is back with me. It is very comforting to know my cockatoo is trained to recall. For me, those are my choices: Dependably trained to recall, regardless of surroundings, regardless of line of sight, or to have those wings clipped. As much as I wish otherwise, those times I can feel what she is feeling, and she looks at me with those eyes that say, "It's ok, I'll be ok, just trust me", I will still use a harness when flying my cockatoo outside... the thought of losing her is too horrible to contemplate.
I applaud you on the exposure of your parrots to a wide variety of surroundings and people. I agree that a child audience can be negative or positive. My cockatoo is a rarity; she eagerly seeks out children. I've learned, however, to quickly turn the experience into a controlled learning opportunity for the children, and my parrot. With the emphasis on quick and control!
My Pionus is an observer, easily frightened. I think that is because her nature is to be part of a flock, but she only has my cockatoo and me. While she is willing to step up for just about anyone... that is as far as she wants to go. She also has lived in a variety of environments with me, however, because of her fear outside - even in a familiar place, she will always have her wings clipped. (I frequently hear of someone losing a parrot outside because their flight feathers grew back -- that is what happened with my African Grey -- that is why I"m typing this a three in the morning - can't sleep while he is still lost. It has been five days, but that is a whole other issue - lost birds.
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I enjoy your Facebook stories and the YouTube videos very much. I think you, Kili, and Truman are amazing. I appreciate what you have to teach us. Keep them comin'!