I have a flock of 19 birds. 7 are 1.5 years old. 1 of my 1.5 year olds I have been seeing laying down a lot. The rest will be free ranging and she will lay down. I checked her feet for bumble foot and it’s not that. She also isn’t limping. In June I treated all the older girls (they were living separately) for worms, but they’ve seemed fine since. She eats treats and sometimes just pecks around while lying down. Am I just being over cautious?