I live in central North Dakota (rural area). We have already seen -20*F this winter, and North Dakota can get to 35*F. I really thought we had everything squared away for the chickens to be warm & safe through the winter, but now I'm not so sure. I found out about the ventilation issues while searching for solutions because the walls starting to get frost on the inside of the building I have the coop in. So, as I've learned, that means there is too much moisture in the coop area, now I'm worried about my chickens. I have since opened a window about 3 inches (at least for one night) after coming upon the information here about the ventilation.
The snow is now deep & we do have predators nearby, including fox, coyote, skunks, raccoons & minks & was told today a neighbor saw a weasel near our property.
Even though the big sliding doors are shut, snow still drifts in because the doors are not real snug.
I'm not sure at this point what I should do at this point short of making them all little jackets
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DH does NOT want me cutting anymore holes in his garage. I did cut a small door for the chickens to go out, but that was where I am thinking of adding the permanent coop this spring & the door to the coop will be where the window & little chicken door now is.
I have some clear plastic sheeting separating the chicken area from the area we store tools & our wood supply, and then snow fencing over the plastic, maybe I should take down part of the clear plastic for more airflow?
I could really use some advice from those who live in areas that get into the serious MINUS temps in the winter. -35 is no fun
Here is a link to photos of my winter chicken coop, which is actually temporary.
http://windyacres98.webng.com/2010coop.html