I have been searching the forum regarding an uncovered run and I am seeing it's not a good idea. My existing dog run is going to become my chicken pen, and it has a bunch of tall trees in it. There is no way to cover it other then using the deer netting, strung up to the trees. Is this possible? Will it keep predators out? My hens will be locked in the coop at night, but will predators attack during the day?