Update.
DBH says he think the voles are under control. He checked the bait stations and for the first time no activity. Let us hope.
I have been able to plant seeds which are flowering now in that long bed. Last year every seed I planted there mysteriously disappeared. Progress.
But complacent never. I realize the voles are probably all around us and can move in again, so the bait stations stay in place. They are great because you really don't notice them.
These are from the front beds.
