I do the same for the chickens. But I now have 7 chicken coops & runs and the 1 coop & run for the ducks. I also race cars and have lots of "toys" (jetski, four wheeler, boats, mud buggie, etc) that I have to have room for too. So running out of room to put more coops without putting them in the middle of the yard LOL
Oh there's nothing wrong with that!!!
Our second run is going to be big enough to hold about 40-50 ducks I believe. The current is big enough for 14. I'm REALLY hoping I don't go over that.