your daytime run needs to be dog proof with 2x4 welded wire fencing. One chicken killing dog in yer run will convince you that it was a real big mistake not to dog proof it.

Night time roost area/box/coop has to be coon which means no small holes, no light wire, no birds roosting close enough to grab thru the wire. A chicken that has been grabbed and torn apart by a coon pulling it piece by piece thru the wire is a pitiful sight and will make yer blood boil.

My night time coop is a 12x12 room tight as Ft Knox, with an automatic opening/closing door. It has windows wire covered with 2x4 wire. Daytime run is chain link fencing. I may be over doing it but having fought the coon wars for years I don't think so...lots of dead chickens in that learning curve.