Hi there, I'm new here. I'm from Alberta and my husband and I are planning to get some chickens in the spring - we have 9 acres here and it's lonely without animals We have a problem with Badgers, Skunks, Racoons and coyotes. I have two Great Pyrenees who would probably do a great job looking after them but I still want them to be safe especially since the dogs haven't met chickens yet and they do like to dig as well so until they have been formally introduced and trained to protect, they are predators too. Do I need to have a concrete base for my coop to prevent predators from digging underneath? We will be doing this on a budget so will concrete patio blocks work just as well? Our coop is going to be attached to the barn which will house Sheep and a donkey on one side and the chickens on the other so I have about a 10x24' space for the coop and a small run plus a huge area for them to free range off grass. Thank you for the help, this is a great site!