This is our first experience with ducks. They are now 6 weeks old. They lived their first 6 weeks in our 2nd bathroom. In the bottom of a large dog carrier, set inside the bathtub. We have been working on getting their outside pen built for 3 weeks now. We finished it yesterday. And moved the ducks out there last night. Not sure how much it ended up costing us. we had to buy some of the wood, nails, roof and the hardware cloth. We have a piece of wood that we can slide down between their run and their house. This way we can block them in the run to clean out the house or lock them in the house at night.