Yep, you'll want to keep it covered.
A month or so ago I watched a hawk try to swoop down and try to get mine. Luckily we have the fence on top(he smacked into it), but you should have heard those chickens scream/run when they saw that thing coming!
I know what you mean about resorts, we fenced our chicken yard/top in with fence my husband brought home from a job or something. I priced that chicken wire and I about had a cow!! I would have bought it if I had too, but I didn't!!