Help with run design

[curby]

Hello all! Looking for some pointers on my daytime outdoor run for my babies, We live in West Michigan so it still gets a little too cold at night, sometimes as cold as 35, We built them a new outdoor enclosure today since their full time indoor one was way too small, we still want to bring them in at night but wasn’t sure how necessary that was with the doghouse filled with flakes. It’s my first time since a kid owning ducks and I want to make sure I’m not missing anything they need in the outdoor enclosure!! The nighttime indoor enclosure is a large clear rubbermaid filled with bedding they seem to be fine in there for short periods of time but have been getting a little lazy. If anyone has any improvement ideas i’d love to hear them! Thanks to all of you for being such an amazing resource for first time owners!!!