We haven't had any issues with predators, really (hopefully that doesn't jinx us!). We live in a residential area with a secure back yard, but when the chickens are out free-ranging I try to keep the dog out there. Our dog is really really lazy (she doesn't do anything except sunbathe) so she's there more for fear factor than anything. lol There aren't any aggressive cats in the area and we have a giant apple tree in the back so the hens are out of view from the hawks.. as far as night time goes, the coop is super-reinforced (the run has double-wire buried over a foot down and the coop is racoon-proof). I am also a believer in keeping the coop really really clean as to not attract anything. Oh, another factor is probably the fact that we only have three very quiet hens that don't attract much attention.
