Do any of you have an effective way of controling flies? They are relentless here!! There's not many around my chicken run, but in the back by my quail pens theres thousands. We have bantam chickens back there on the ground and they're doing a fair job of eating the maggots but not good enough. We've tried those red plastic quickstrike things, Golden Malrin, Raid spray everyday, Bugblaster, Yardguard, Cutter, the hanging fly traps, moth balls, hanging water-filled ziploc bags, pyrethrin, an electric bug fogger....to no avail.