You're not too far off! Except you won't "pick them up" to get them back in their run.
They'll know you as the bringer of food. You can use some sunflower seeds or some raw meat and they'll come running!
Just remember - it's easier to get them to come running to you (with some food)...as soon as you start chasing them, it will be quite a "show". (Where is that video someone posted of that girl "catching a chicken" ??
)
Seriously...if you keep them locked into a predator-proof house at night, your main worry predator-wise will be hawks during the day and any stray dogs that might be able to get in your yard. They likely won't fly over the 6 ft fence - though they could. And you can just lure them right back with the same food!