What is interesting, is that he has joined a 'pack.' Dogs do that naturally, but not always in our modern settings. They do when they live with other dogs, but not always when they are the only dog in the house.
What Charlie has done, is accepted most of the neighboring dogs as part of 'what belongs,' and now considers himself as part of their group/pack.
He knows Belle's barks for example, and responds to her alert barks, without feeling that he needs to do her job. Though it's not strange for dogs to just join in. They are working together from a distance.
It's good that, once you want him at the door, you don't let up. That allows you to be top dog, which, as you know, is important, not so much for that moment, but other times. Small things, like not following through with what you tell your dog, or indicate, means that, over time, they stop paying attention all together, and can consider themselves in charge, depending on the dog.
Yes, I am careful about how I word it, because I have loved all of my dogs, but some have just had a different relationship with me, or us.
That's so interesting. We got one of our amazons in the summer of '78, also. Up at a quarantine station close to the Mexican border, about 4,000' up.
I was just going to say that I'm not sure if Chance's new habit is from happiness, or a protest/stress habit.
Parrots are smart critters. They learn really fast what propels us to do things, and what movements mean that food/treats/water are on the way. Apparently, Chance knows exactly what Charlie's up to, and what the result will be! Not that he wouldn't decide on his own when it was time for a treat, lol!
Love All Life, Thank You For Posting! :)