Hello, I would like to build a coop like yours. What is the yellow rope for? The nest boxes, where can I get those? The plastic on top, was it a tarp? Or tarp was only for side wings? Do you have an exact material list? Thank you so very much. This would only be a housing coup for us to keep safe from predators . Free ranging during the day. How many chickens can sleep healthfully in there? I live in Texas it gets hot here. Ilive central Texas. Some cold weather but mostly mild winters compared yo northerners. Best Regards