horrendously noisy chicken

[char032]

I have a Speckled Sussex that sounds like a dying pterodactyl. She moans, screeches, and yells constantly throughout the day regardless of the situation. Neighbors have even stopped by asking if she was alright and not being murdered. I was wondering if anyone knows of a few tricks to get a chicken to pipe down. I figure it is a long shot, but thought I would give it a try since I do live in an Urban setting, and am somewhat concerned about annoying my neighbors. No to mention it is driving me nuts too. Thanks!