It is going to be tuff... just like human... some may keep on talking for hours about something that would take only few minutes to explain. Example about heart burn: You click on written article and after 10 pages still not the end.
I tried no crow collar before, but wasn't that much success. The best way is raise a bunch of rooster and select the quiet one out of the group. I bought a pair of Bresse recently, the rooster isn't crow much. I also got free Ayam roosters recently and select 2 quiet roosters from the group...