Total newbie here!!! We're designing our coop right now. I have three 1 week-old chicks. We have already built the frame of a day tractor that (we hope) can either be moved around or docked up to the run on the coop to give some extra run space. The price of welded wire is really making my husband want to use chicken wire. The coop design we are leaning toward is this one: I'm going to bury a welded wire bottom for protection but without the chickens having to stand on it. The day tractor is going to have an open bottom. The chickens will theoretically be safe inside the coop at night. I think the day time predators to consider here in Portland OR are cats and hawks and maybe crows (?). At night we've got racoons, possums, rats. I was planning to drape bird netting over the day tractor for extra protection. So...given all this, can I use chicken wire or should I invest in welded wire? Thanks for any advice! Anyone from Portland who knows of other predators, I would love to know that too!