I'm also pretty sure these ladies have worms. I see small white eggs in at least one hen's poop. I've never wormed before, but from what I read, Wazine first, then 2 weeks later, Valbazen or Ivomec? Dump eggs the whole treatment time + 2 weeks? diatamacious earth. works great and safe to eat eggs. sprinkle on their food and give them a pan of it to roll in for mites. Geez, this is getting expensive.