Hi everyone from SW Michigan! First, I’m sorry this is so long. I started writing it not realizing how many questions I would have. I’ve been doing a lot of reading here on BYC on this topic, and I have questions pertaining to my geographical area that I really need some more seasoned input on. After a tragedy last week where two dogs broke into my coop and killed my small flock, I’ve been on a mission to ensure that it will never happen again. I received some good feedback in another thread that was not intended for coop construction, but I have so many questions and ideas that I would like to run by the more seasoned members here – so it needed its own thread. This is my family's first year with chickens (although I had them growing up), and as time and money dictated, we purchased a prefab kit that I did some hefty updates to. I had more plans to prepare it for the winter, but unfortunately it wasn’t enough to keep predators out. We’re in an urban area, and predators are minimal…or so I thought. We have new chicks coming later this month from MPC, so I have a couple of months to build the new coop before the chicks are ready to leave the brooder inside our home. I’m just not sure where to begin. My first thought is to expand and strengthen the current coop, and then build a walk-in 8’x10’ (or 10’x10’) pen for my 4 birds (our city limit). The coop would then go inside the pen, and I’d fortify the pen against predators. If I go with this idea, then here are my areas with questions: 1) Should I put a roof on the entire pen, since we get heavy snow fall in the winter (easily 6+ feet a year in my area) and plenty of rain? If so, should this be corrugated metal roofing, the polycarbonate, or full wood with shingles? Or just a poultry net? 2) The coop house is roughly 3’x3’ for four birds. They all fit well on one roost bar with room to spare, although I would like to open it up more. It is well ventilated with a window at the peak and the entrance door. It still seems small! But then again I’m not chicken, so I don’t know how much space they really need to keep warm in the winter, which is my largest concern. 3) What should I use for the pen walls, especially to bar against predators? 1/2 “ or 1/4 “ hardware cloth? Is there a good place to find it at a reasonable price for the amount that I would need? Or should I just overlap cheaper chicken wire in two layers? 4) The coop location is open to the elements on all four sides – due to being in an urban setting, and my city code requiring specific distances between property lines. Legally the only place I can put the coop is in the middle of my back yard, which I don’t have a problem with, but the wind can cut through pretty good in the winter. It can get down below zero degrees F for weeks at a time. There’s also limited shade in this area for our 90+ degree Fahrenheit summers. What would be the best way to prepare this for the winter? Any suggestions and input would be greatly appreciated! I plan on starting this project soon, and I’m trying to get a good plan in place before moving forward. Thank you all in advance! Edited for formatting - My mobile app didn't play too well with the website and added a lot of spaces.