Joel Salatins Egg Mobile

[DuckBoy323]

Has anyone ever done a set up like this? Building a coop with just a roof and a few walls but having electric fence around it? I'm trying to do something new with my chickens and wanting to move em around the pastures and saw a few of Joel's ideas and thought it was pretty neat. I just don't know if it works on keeping predators out. It seems kinda risky in my opinion. Anyone have any thoughts on it?
http://en.wikipedia.org/wiki/Joel_Salatin

 

[blucoondawg]

If that poultry I fence is maintained properly, which means installing it and monitoring it so that nothing grows up around it and shorts it to ground, it will likely keep the majority of common chicken predators away. I would worry about hawks and owls of course as they fly in, as well as small predators like weasel that may be able to get under the fence without being shocked