I just checked my broody hen today and noticed that her whole face is covered with ticks! A couple of them were full of blood, that is why I noticed. I pulled them off and checked the rest of her body, none on her body just face/ears/eye area. Checked the rest of my hens and they don't have any. My guess is that they are picking them off of each other. My broody hen is separated from the rest of the hens and you k now how broodies are about not letting any of the other hens near them anyway. She only has a couple of days to go before the chicks hatch. Would it be ok to put lavender oil on her comb/ear area? I wouldn't want it to get in her ears, but want to do something to repel the ticks. Any ideas?