I have a motion sensor light on both side of the house. I don't know if it deters them, but it alerts me if something is really really close. One run we dug the fence into the ground, the other run I made a skirt that lays flat, I don't know what's actually better. They are also fenced (welded wire) on top so nothing can jump/climb in. I also try and lock the birds in their coops/houses at night, not just their runs. I don't know if there's anything else to do. When I see them in the day I yell at them or honk my horn at them. Sometimes I fill in their holes out in the field, I like to think they will think it's no longer a safe place to hang around, but I don't know if any of this does anything!
It hasn’t really worked in the past, as they still get pretty bold every so often.
) welcome to the Colorado thread. Yes, I think every state just has one big long thread, though people may start new ones now and than. I don't think there are enough people participating in the state threads to justify starting more specific threads, at least not for CO. This thread would be difficult to read through for sure but it's easy enough to just join in.
The older chickens and ducks are starting to get over the attack. They had been staying very close to the coop but are slowing venturing further and further. I need to get the ducklings to start going outside. They have gotten huge and I'd like them to get out in the sun. They are as big as the adult chickens. Here they are by their sled that I just filled with fresh water. (Please excuse the state of the coop floor. I'm about to shovel it all out into the garden so haven't added any fresh bedding in a while.) 
