One nice feature of keeping chickens is the easy way they put themselves to bed at night, each one going into her or his own coop at sundown, without being forced/driven/reminded/nagged. Sometimes I forget to be grateful for this self-directed habit of theirs until a visitor will ask "Just how do you get them to all come in at night?" and I remember "Hey, there's a nightly chore I don't have to do!" The guineas will do this too, though sometimes they must receive updated signals from their Mother Ship to switch their roosting place. As long as it's safe and not subject to damage from their droppings I'll go along with it. But what about ducks? Will they just as faithfully return on their own to their pen? I plan to let them roam freely about the yard all day, but think they should be enclosed at night to keep them safe from predators. Am I right in thinking they prefer to sleep in snuggled together on the floor, and don't need a roost? I am planning on using a plastic dog house or plastic crate for their bedroom. Will this be where the girls will lay their eggs? Will they lay them during the night? Do they need a separate nest box or do they lay them in their beds? Do they poop in their beds while they sleep the way chickens & guineas poop throughout the night? They're only 4 weeks old now, I still bring them into the screened back porch at night, to sleep in a straw-lined plastic bin for safety's sake. But I know I need to prepare for them to sleep outside soon. Thank you for your advice for my ducklings!