The Khaki Campbell is the athlete of the duck world: a lean, upright, khaki-feathered layer bred to produce remarkable numbers of eggs and to forage actively for much of her food. She needs a pen and a house on the ground, and the tank idea misses what a duck actually requires, which is secure ranging room by day, head-deep water to keep her eyes and nostrils clean, and a predator-proof house at night. A Campbell in a small static pen will pace and wear it to mud; give her ground to work and she is one of the most rewarding ducks to keep.
Run space for a duck that never sits still
Campbells forage from dawn to dusk, dabbling, probing soil, and hunting insects and slugs with real purpose, so their outdoor space should be as generous as you can make it, with grass, a digging corner, and varied ground rather than bare concrete. In a fixed run, rotate sections or accept a sacrificial area near the house while resting the rest, because an active flock strips and muddies a small pen quickly, especially in wet weather. They are light, quick ducks who can flutter and scramble more than heavy breeds, so fencing and a covered run in predator-heavy areas should not assume a Campbell cannot get over a low barrier when frightened. Include shade and a windbreak corner; a lean bird in light plumage rests in shelter through the hottest and roughest parts of the day and forages the margins of the day hardest.
The night house for a laying flock
Campbells sleep on the floor like all ducks, so the house needs dry, deep bedding across enough floor area that the whole flock can settle without lying in the damp patch every duck house develops near the door. Nesting for this prolific layer should be low, private boxes or strawed corners at floor level, several of them, because a Campbell lays early in the morning and a flock queuing for one favored spot produces floor eggs in the bedding. The door needs to be wide and low-stepped for birds coming in at dusk in a group, and the whole house must latch and seal against predators, since a duck on the ground at night has no escape. Ventilation high in the house clears moisture from bedding that ducks inevitably dampen, without a draft across the birds sleeping below.
Water placed for health, not swimming
A Campbell does not need a pond, but she must have water deep enough to submerge her whole head, and a flock will use a sturdy bathing tub enthusiastically if one's provided on ground that drains. Place drinking and bathing water on gravel, slabs, or mesh rather than soil, because Campbells splash and dabble constantly and will excavate a muddy crater around any water on bare earth, then carry that mud into the house bedding. Keep the water within the secure run rather than expecting ducks to range to a distant pond and return safely at dusk. In freezing weather the essential provision is unfrozen drinking water they can dip into, renewed through the day, not an ice-free swimming area.
Space that supports laying condition
An egg layer in full production needs her space to work nutritionally as well as physically: foraging room supplements her feed, calm housing protects her rest, and crowding or constant disturbance in a too-small pen shows up in ragged feathering and unsettled laying. Watch where eggs appear and how the flock uses the run across a week, and adjust fencing, boxes, and water placement from evidence rather than guesswork. KinsLe Family Sharing keeps egg notes, house checks, and run rotation on the flock's shared profile, so everyone maintaining the Campbells works from the same observations.