Don't worry, the cats won't be free to hurt any robins! This particular campground is extremely heavily used, and there is not a blade of grass to be seen, let alone anything for a robin to eat. The cats will be outdoors for short, supervised times, and won't be able to leave our individual campsite.
But I would like to create some sort of setup, so at least they feel comfortable walking around our campsite, and they don't have to feel like they have to hide inside our small van for the whole time we are there.
A screen room is a great solution for dogs, but I think cats would find it frightening. They would feel like everyone could see them, and they had nowhere to hide.
We are mostly full-time, so leaving cats at home is not a realistic option. The RV is their home.
I'm wracking my brain trying to think of some way to make the campsite more hospitable for them. If any of you have ideas, that would be great!