Aha, picture explains the 'connectable' part, I was having trouble imagining it! I have seen these tunnels used in permaculture and thought they were a little over the top for my purposes, but if they are moveable that means I can create a few daytime run areas/paddocks around my yard and switch them off which would be PERFECT for my purposes---thanks for the idea!
PS I am working out how to build an open run area for my girls for this winter. I had posted in the chicken run board, but I thought I would throw my questions out to you all too in case you have any ideas. I am wanting to do a non-electric fence, probably to the left and in front of my coop from the front left corner of the run over to my fence. Wondering how high I have to make it, pros & cons of materials (looking at wood slat snow fencing, plastic chicken fence, or welded wire), and experience/thoughts on clipping wings. Thanks in advance for any input!