That's because I've learned how to put it on tightly enough without choking him but keeping him quiet. It took a few tries but it's working.
It actually worked on our last cockerel.
This post might get a lot of people telling me what I should do/what not to do instead of what I'm actually asking but I'm prepared for that.
We currently have an almost adult cockerel named Sergeant Hei Hei and we do live in the city but he wears a no crow collar that he's worn every day since...