Ours are not connected, but the tractor I’m building now will have a detachable run, precisely because moving the young birds from one to the other is an unnecessary bother.
If they are accustomed to getting food from your hands, and you offer your hand, you will get a peck.
It’s not exactly what I’d call painful, but you’re sure aware it happened.
Just looked it up on Ask.com. Found a site with a gazillion pics of various styles. Detachable sounds like a good idea. I’d have to have someone help me build it as I’m not electric construction tool inclined. lol The idea does intrigue me for lots of reasons. Bookmarked for future reference because all the great knowledge here! Thanks, Petronski, cyborg!