@happy duck It is crowded! There are 14 ducklings in that house but they don't mind being so close to each other yet. It is cold here at the moment and they all huddle together. But i will build an extension to the house asap, so they will have an additional 1.44m² (15sqft) available. With the speed their feathers grow i think i can let them loose in ~2 weeks, depending on the behavior of the grown up ducks…