I recall reading a hint about how to keep squirrels from digging up tulip bulbs: plant the bulbs but lay a piece of chicken wire over them. The bulb will sprout through the openings in the fencing, but the squirrels can't dig through. It might work for chickens.Well I decided to go ahead and dig up my dahlia bulbs since the chickens won't quit digging in that bed... I think I had somewhere between 10 - 15 starter bulbs in that bed last spring. Only found 3 or 4 big clusters and a few random single bulbs here or there. I think most of them rotted....It was a smallish raised hugelkultur bed too... Oh well, lesson learned. I've got a couple of months to figure out a better place to put them.