Also, consider this: you will be training them to come out of water for an evening feed. Ducks MUST have water when they eat. So, provide a bucket of water inside the little fenced area. Their evening routine can be: come for feed, get shut into the little penned area, then after they've eaten, and sloshed it down, shoo them into the coop for the night. If you cut in a window, (with hdw. cloth for pred protection,) they will be less fearful of going in. Ducks LOVE a nice thick bedding of hay or straw. That will also be an enticement for them. If you intend to keep a couple breeders, you'll want to train them to lay in the coop as well!!! First eggs at 5 - 6 months. And, I much prefer duck eggs to chicken eggs!!! One of those Pekin eggs will = 2 - 3 chicken eggs.