When I woke up this morning I found a young Hen dead, upon examining her, I noticed little brown bugs on her, I looked at a few other birds in the same coop and seen none on them, did the bugs/mites kill her? she has never shown any sign of sickness even look great yesterday. so now that I seen these bugs how do I get rid of them safely? I have never had to deal with this before and do not know what to do or how to do it, someone please help me!!!