In Reply to: Either him or the bird posted by Monica on December 28, 2011 at 17:27:53:
What do you do when he screams? What does your husband do?
Something has caused him to find this behavior rewarding. Even negative attention (yelling at him to cut it out, for example) can be seen by the bird as desirable.
Absolutely ignoring screaming and making no kind of response at all should cause the behavior to die out, although it will take time. You can also try teaching a more pleasant way to ask for that attention, such as whistling.
Sometimes contact calling is mistaken for screaming. When my birds call to me when I'm out of the room, I will answer the first couple of calls so they know where I am. If they persist to the point it is annoying I'll ignore it and they eventually settle down.
Since he only does it when your husband is home, he's clearly getting some kind of reinforcing behavior from your husband's presence, and you need to figure out what that is.
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