I got my coop cameras in today. I was doing dishes watching my girls and noticed one bird gaping and stretching her neck. They were roosting for the night so most were preening as she was but she repeatedly gaped ten times or so before she stopped. Should i worm them if so with what. Vetrx or ivermetin i have never wormed a chicken. I have ACV water for them but they free range.they are young 10 months old.