I have been admiring the work on these pens and today I just scored big with 3 big stacks of pallets. I doubt I can get something built before winter, though, as I have 4 children that demand their Mama's attention (ages 9, 9, 3 & 1). We have 2 small coops at present (one I actually built out of the pieces of an old waterbed!) and a larger metal 6x8 storage shed that I converted into a coop. I am hoping to get something more organized soon to get the groups of birds more separate. This will be my first winter with chickens as I just became a first-time chicken mama on Mother's Day (it was my gift). Currently I have four 17wk birds (BO, Barred Rock, GLWyandotte, SLWyandotte), 9 BCMs, and 2 Barred Rocks that are approximately 3 weeks old that I got as girlfriends for my other Barred Rock.... if they are girls LOL. What are some tips for keeping the water from freezing in the winter? I bought one of those expensive waterers that plugs in, but will need an additional water source. Surely, the nipple waterers would not keep from freezing even if you placed a heating device into the tank the water is held in - what would keep the small pipe and nipple from freezing? It can get mighty cold in my neck of the woods over winter.