Cubalayas are phenomenal flyers, mine routinely clear an 8 foot wall with no running start, and, I 've often seen them fly up into the barn rafters to roost, from a standstill. I manage them by wingclipping the ones that insist on wandering. That is a big no-no for showing, but, it works for me. My main pasture fence is 4 feet high, actually they can clear that even with both wings clipped, but, honestly seldom try. Even the ones with full wings seldom try to fly out, we have an acre of fenced pasture. If they do fly out, it's usually because of conflicts they are having with another bird(s). I do keep them penned in the breeding season, but, I do not like to maintain breeding pen type set ups year around. After I'm done hatching, ( the adult breeders) they all go back to the pasture with the geese and sheep. They will feather pick badly sometimes ,especially young ones. My original wheatens never did, but all the other lines do. They don't mix well with feather legs or crested breeds, will pick them badly. Lots of green plants and lots of space help. When they feather out well,(chicks) maybe 5-8 weeks, they get turned loose each morning, and penned back up at night. I guess that would be "day range". When they are 12-20 weeks, they get their wings clipped and put into the main pasture. Most of them stay in after the wing clipping, as they like to stick together. Usually when their wings grow back in they still stay in the pasture. Even heavy breeds can clear a 4 foot fence if they really want to, but, personally, I am not making covered runs, I manage things more like a small backyard farm rather than a show breeder. Between our geese, crows, dogs, ram, and goats, and cocks, only the stupidest birds get taken by hawks, and I don't need dumb ones anyway. It comes down to what your focus is I guess -show breeders don't clip wings generally, but small farmers with electronet rely on it.