fanceychicken
Hatching
hi I'm pleased to be a member of the byc also have a question about the no crow callers I've had them for a couple weeks now one of my roosters is not growing and one of my roosters keeps growing I don't know whether to tighten the collar or loosen the collar I'm open to any ideas
and Welcome To BYC! You might try posting in the Managing your flock forum for help with the collar 
