Definitely more space. My main coop is 8x14 feet and I wish it was double the size at least. Mainly so I can put more stuff in it to have things on hand and still have plenty of space for the birds to move around in. I have all the usual predators. I use garden/fence posts laid down triple wide along the secured area as a dig barrier. I use big pine logs along the bottom of the electric fence as a dig barrier there. I did see a hawk on the power wire earlier today. I may have to think about overhead protection soon. With the 2 coops and a canopy between them I’m thinking/hoping a winged predator may not have a good attack flight path.