Hello, duck people! I have six muscovies about eight weeks old. They are getting along with my four laying chickens, and everyone has been sleeping together in the chicken coop without incident. My problem is the muscovies will not reliably go into the coop at night. Two or more of them often bed down in the grass instead of getting up into the coop. Every night I wait until they are settled and go fetch whoever is in the grass and toss them in the coop. The ducks promptly settle down, looking completely content to be there. An acquaintance with muscovies says hers don't always go in the coop, and she thinks they are just willful that way. Any thoughts?