After much head and chin scratchin', I've decided about the only way I'm gonna "keep 'em down on the farm" is to install an aviary netting over the entire top of my chicken pen. I've given up thinking I can keep the population count up and let them free range. (too many predators out here in the woods) And having already experienced the joy of free ranging, I can't seem to keep them in a pen. But I've a concern. I live in Central Oklahoma, where we frequently experience ice storms. I use similar netting on my fencing and have never noticed any problem with ice, but never in a horizontal installation like the tent over a pen. Has anyone had experiences with ice and aviary netting being a problem?