Well I bought some sevin dust and some flea spray and some pine shavings for the bedding. I put the ivermectin on yesterday. I took out all the bedding and the wood egg box. I put in fresh new stuff. I added de. I will use the sevin tomorrow if I still see activity. I worry a little about the sevin and the possible baby chicks but again I would rather keep my hen than worry over baby chicks that may not even hatch. Thanks!! Is the sevin toxic or dangerous??