Keeping Garden Hens Healthy Through Wet Weather

Why Wet Weather Is the Hen Keeper's Toughest Test

A few days of British drizzle is nothing to worry about, but when the rain settles in for weeks, small problems in the henhouse start to grow. Damp bedding turns to ammonia, muddy runs churn into slurry, and birds that would normally shrug off a shower begin to look hunched and sorry for themselves. Chickens are surprisingly hardy, but they are not waterproof in the way ducks are. Their feathers work best when they are dry and fluffed, and once the plumage gets soaked through, hens lose much of their insulation.

The good news is that almost everything that goes wrong in wet weather is preventable with a bit of forward planning. If you can keep bedding dry, air moving and feet out of the mud, your flock will come through the wettest winter looking glossy and laying well.

Getting the Coop Right: Ventilation Without Draughts

The single most common mistake in a damp climate is sealing the coop up tight to keep the rain out. That traps moisture from droppings and the birds' own breath, and a stuffy, humid henhouse is a recipe for respiratory trouble. Aim for ventilation above head height, ideally a slot under the eaves or a mesh panel opposite the pop hole, so air moves across the coop without blowing onto roosting birds.

• Allow roughly one-tenth of the floor area as permanent ventilation, and more in a small coop.
• Site the coop on legs or a paved base, lifting it 30–45 cm clear of the ground so air circulates underneath and the floor stays dry.
• Face the pop hole away from the prevailing wind and rain, and consider a small covered porch or baffle board.
• Check the roof and felt every autumn. A pinhole leak above the perch will soak the bedding in a single night.

Bedding That Actually Stays Dry

Deep litter works beautifully when it is dry and disastrously when it is not. Build up 5–8 cm of absorbent bedding, adding a fresh layer each week and turning it lightly, and you will get a composting floor that stays sweet and warm. Anything that gets soaked needs removing straight away — a soggy patch spreads fast.

• Wood shavings: excellent absorption, easy to spot-clean.
• Chopped straw or hemp: good for deep litter, quick to rot down on the compost heap.
• Avoid long straw on a wet floor: it mats down, holds moisture and encourages mould.
• Never use hay in a damp coop; it grows mould spores that can damage a hen's respiratory system.

Keep drinkers inside or under cover, and raise them on a brick so spillage drains away rather than soaking the litter.

Sorting Out the Muddy Run

A permanently poached run is the root of most wet-weather problems, from filthy feathers to scaly feet. Hens scratch relentlessly, so bare earth will always turn to mud without help. The aim is not to keep the run perfectly dry, but to give the birds somewhere to stand that is not ankle-deep in slop.

• Lay bark chip or woodchip over the worst areas and top it up as it breaks down.
• Roof part of the run with clear corrugated sheets; even a modest covered area transforms a wet run.
• Add paving slabs or gravel along the pop hole and around feeders and drinkers.
• Keep hens off waterlogged ground in the early morning and let it drain before letting them out, if you can.
• For long spells of rain, consider a mobile ark so you can rotate the flock onto fresh, drier ground.

Scatter a little mixed grit or woodchip in standing water to give them grip and stop the surface churning deeper.

Health Checks for Damp Conditions

Wet weather brings a handful of predictable complaints. Bumblefoot, a painful infection of the foot pad, starts with a small cut picked up on muddy ground. Scaly leg mites and red mite both thrive in warm, humid crevices. Coccidiosis spreads readily where litter stays wet. A weekly five-minute check catches most of these early.

• Feet: look for swelling, black scabs or heat. Dry, clean bedding is half the cure.
• Feathers: heavy breeds and moulting hens soak up water badly. Dry them off and provide a sheltered perch.
• Droppings: loose, bloody or weirdly coloured droppings in a wet coop merit a vet's advice.
• Respiratory signs: sneezing, rattling or a foamy eye usually means the coop is too close and too damp.
• Mites: run a white tissue along the perch and under the nest box lid; grey smears mean trouble.

Housekeeping, Feeding and a Warm Mash

In damp conditions, clean more often rather than less. Remove droppings daily if you can, do a full bedding change weekly, and scrub drinkers with hot water and a poultry-safe disinfectant, drying them before refilling. A dry, well-ventilated coop with fresh litter smells faintly of wood, never of ammonia.

Feed from a hanging feeder kept under cover, and never let pellets go soft or mouldy. Mouldy feed causes serious illness. Offer a warm mash on cold, wet mornings — layers' pellets mixed with warm water and a little porridge oats go down very well and give them something to do while the run drains. Keep grit and oystershell available at all times, and give moulting or soaked birds a little extra protein in the form of scrambled egg or mealworms.

Finally, make sure every hen has somewhere to get out of the rain and the wind, whether that is a covered run, a dry dust bath or just a sheltered corner of the coop. Hens that can choose between a dry perch and a puddle will nearly always choose wisely — it is our job to make sure the dry option is there.