So, my birds have lice. I noticed it while playing with my little bantam today. I want to dust them with Sevin, but I have some questions first. What's the best way to do it? I was thinking once they all settled in to roost. But do I just leave it on them after I've dusted them? Will ingesting it hurt them, if they groom after being dusted? I also have a momma with six 2-day-old chicks. Do I dust her, or would it hurt the chicks? Sorry for all the questions, I just don't want to hurt my birds while trying to help them!