My pullets are now 17 weeks old. They were wormed with panacur from the vet when the other chick died (9 weeks of age). Iʻve read that they should be routinely wormed at 18 weeks. Should I worm them again? Or should I take a stool sample into the vet? One of the pullets loves bugs (which I understand may be a source of parasites) but the other one doesnʻt. Also, how do I check my chickens for lice and mites? I tried to find a place on their body that I could see skin easily to look, but itʻs all feathers. Thanks so much for your help. This is all new to me.