We found out we had a rat that chewed a hole in the shed a few weeks ago and have been trying to catch it since. I believe it was a weasel or mink that got in and attacked her (I found a very fresh weasel like poop and blood near the hole). I have been trying to catch the rat without luck (haven’t seen evidence of the rat since the attack). I’ve since covered the hole it chewed in the coop. The vet said I would need to keep her in a weatherproof enclosure which is why I need a roof. I usually use a tarp but last winter, I didn’t get the snow off fast enough and it collapsed the top fence (I’ve made a temporary partial roof but need something permanent. The ducks/ chickens are free range. This was the first time something got them inside the coop as it is very secure. The pen is only used for daytime shelter when the weather is bad. I may have to do a tarp roof again this year. As long as I clear the snow before it gets too heavy, it works.