We've raised chickens for a little over 10 years now and we've never had an issue with predators as badly as we do now. Lost over 10 chickens in the last month. I have chased off on multiple occasions a pair of Martens, and a fox. As I unfortunately must work for my money, I cant sit outside the chicken coop with a shotgun all day, are there any half-way decent detterents for these predators? Thank you