No-go on the no-crow collar for me. My cockerel wasn't having it! He threw himself around so bad that I thought he was going to kill himself. I tried several times tightening it differently each time.
My immediate neighbors don't mind him (they have triple paned windows) but he wakes me up way too early every morning so he's been sleeping in a cage in the shed. It gets really messy! I'm trying to decide if it's worth the hassle to try to keep him.
He's a beautiflul Black Australorp. His black feathers shine in the sun with purple and green and when the hens sense trouble and hide, he steps to the front to confront the perceived challenge. He has challenged me a couple of times, but backed down with just a little stomp in his direction. He'll eat out of my hand but keeps a respectable distance otherwise.
The shed won't work in the summer, though, so I'll have to figure something out before then.