What was the answer, seems like some people may have the same question now that it was brought up.

Oh, the screaming will get worse if you give the bird attention while its having its little fit. You best thing to do is either ignore it, or turn your back to the bird until it stops screaming, then give it lots of attention so that it learns that it will get attention when its behaving. They are like children, he probably just needs to get used to its new environment. (sorry if this is something you already know)
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I think my frog owns a megaphone....

White's tree frogs : 1:1
Mantella viridis : 1:2