Hi. New here. Just found this site and love all the info! My question is-- Our chickens have a chicken yard and coop but free range our property when we are home. last night we had a copper head snake on our driveway. I need advice on what I can put out to deter snakes from our living area/yard but not harm chickens if they happen to eat whatever I put out since they free range our property. any advice? Thanks!