entrancedbymyGCC wrote:But where I am not convinced is here where my best reading of the situation is that at times Scotty would prefer to be doing something else and that he has learned using his beak is a good way to not have to change plans. I don't think WE taught him that, there were plenty of clues that he'd learned that already at the store. I think at some level we need to carefully balance making the act of stepping up for Bill desirable while making the act of attacking with the beak, if not undesirable, at least pointless. That would be extinction, and a combination of negative and positive reinforcement (the removal of the repeated request and the provision of a treat and a fun activity.)
This is the reason I told you to try the start from scratch technique that I previously outlined. Let's just say it's true that bill did absolutely nothing wrong and this is all based on the parrot having a past history of liking women and hating men. This is all the more reason for bill to reteach the parrot from the start by showing him first of all that he's not going to force the parrot to do anything, second of all teach behavior that the parrot can express to earn what it wants, and finally retrain step up as well as retaming the parrot to step up, touch, etc.
You keep saying the situation isn't completely consistent and don't know the exact cause. This is all the more reason to eliminate ALL factors and then start with blank. It's not that important to figure out what part of your husband's personality or behavior is the cause. It's more practical to just stop, slow things down, and start with a new positively reinforced relationship that can grow into something more. Stop the trend of things getting worse, train the bird proper behavior in its new home, and then work things back in. It really can't hurt to do a little positive reinforcement training on the parrot so I really cannot imagine any reasons not to do it. Really that's what should have been going on in the first place.
I'm developing a new theory about parrot retaming. In short what it says is that just because a parrot is tame with one person, doesn't carry over to the next. The other people will have to earn the parrot's trust and tameness by repeating the things the first person did to tame it (although it may be much easier and quicker than the initial time). The reason for this is because the general concept of a human has betrayed the parrot's trust at some point in its life (vets, groomers, rough handlers, guests, etc) and relatively few people (primary caretaker) are actually good to the bird and provide positive reinforcement. I think regardless of the cause of Scotty's insecurity/aggression, Bill should earn the parrot's trust by changing his approach to handling the parrot to a positive one.