I’d love to see what you’re talking about with a fake entrance- do you have any pics? Or could you do a quick doodle?Snares work well. Get a local trapper to set them and eliminate the "frequent fliers". Iyts your right. And if they are there, they ARE a threat. They just need an opportunity. locking mine up at night has been 100% successful last 3 yrs. A fake entrance with a kill trap in it set 24 /7 takes out the ones that think they are getting in. But dont come out. rats cats coons possums. Up out of the way from where the birds go. Tin roofs and nettings keep fethered foes outta runs.