I have two pigeons in with my chickens right now. I noticed one of the chickens acting lethargic, so I examined her and she appears to have poultry lice. I can't catch the pigeons with the way the coop is set up (and one is new and unfamiliar to me, so he is very skittish), but they do seem to be itching themselves quite a lot. Can pigeons get poultry lice? I dusted all the girls and the floor with 7-dust - should I get a net to catch the piegons and dust them, too?