What a duck's feathers already do
A Khaki Campbell in good condition is better dressed for winter than almost any hen. Ducks carry dense, oiled feathering that sheds water, a layer of down beneath it, and the ability to tuck bill and feet into warm feathers while resting. Healthy adult Campbells, a khaki-coloured laying breed better known for eggs than hardiness talk, routinely stay active outdoors on days that send chickens sulking indoors. Their shelter therefore does not need heating or coddling; it needs to be dry, secure at night, and managed so that water, mud and ice do not undo what the feathers accomplish.
The night coop: dry, secure and aired from above
Ducks are at their most vulnerable asleep on the ground, so the coop's first job is keeping predators out: solid walls or fine, strong mesh on every opening, and a door that latches against clever paws. Inside, spread straw deep enough that the ducks can hunker down into it, since Campbells rest on the floor rather than perching, and their feet warm against their bodies and the bedding rather than the frozen ground. Ventilate near the roof so the moisture from a flock's breath and droppings escapes, but keep openings positioned so winter wind cannot blow directly across the sleeping ducks. A coop that smells strongly of ammonia at duck height when you open it in the morning needs more high ventilation, not more bedding layered over the problem.
Water management is the winter chore
Campbells need drinking water they can dip the whole bill into, to rinse their nostrils and eyes, but a full bathing pool in freezing weather is a liability: it ices the run, soaks breast feathers that then freeze, and turns the coop doorway into a skating rink. Offer a sturdy drinker deep enough for bill-dipping, refreshed and de-iced through the day, and save swimming for milder spells or a supervised splash in a small tub on a thaw. Expect the ground around any water point to become a muddy, then icy, hazard; a base of gravel, a moved drinker, or straw scattered over the worn patch protects feet, because a duck standing on ice and frozen mud all day can damage the soft skin of the foot.
The run, laying and winter condition
Khaki Campbells are bred to lay, and a laying duck spends real resources through winter, so shelter works alongside feed and a dry place to rest rather than replacing them. Give the flock a run they can leave the coop for, with straw or dry ground as an alternative to standing on snow and ice, and a simple windbreak they can sit behind in the sun on still days. Collect eggs promptly in hard frost before they freeze and crack. Watch for a duck that stops waterproofing, with feathers looking wet and bedraggled rather than shedding water, one limping on swollen feet, or a bird sitting hunched and apart from the flock; those are problems beyond shelter, and prompt veterinary advice is the right response.
Duck duty, divided and recorded
Winter duck care is a rhythm of small chores, de-icing, straw, eggs, locking up, often shared between family members on dark evenings. KinsLe offers Family Sharing so each Khaki Campbell flock's profile and care information is shared with everyone helping, meaning the person who locks the coop knows what the person who cleaned it noticed that morning.