Why wet ground is more than an inconvenience

A bit of mud in November is part and parcel of keeping hens in Britain. Standing water and permanently poached ground are a different matter entirely. Damp litter is where coccidiosis and intestinal worms thrive, and a hen that spends weeks with wet, matted foot feathers is a prime candidate for footpad dermatitis and bumblefoot. Wet bedding in the coop also pushes humidity up, and humid air is far harder on a bird's respiratory system than cold air ever is. Chickens cope with frost beautifully; they cope very badly with a swamp.

The aim, then, isn't to keep the run bone dry — unrealistic in a country that can take 1,000mm of rain a year. It's to keep the surface friable, the water moving, and somewhere for the birds to stand that isn't a puddle. Do that and you'll sail through to spring with healthy hens and a run that doesn't smell.

Start with the lie of the land

Before you spend a penny, watch where the water actually goes during a heavy downpour. Ten minutes with a torch in the rain tells you more than any amount of guesswork.

• Slope: a fall of just 2–3cm across the run is enough to move surface water away from the coop. If the ground is flat, you'll need to create that fall yourself or rely on ground cover and channels.
• Run-off from above: a coop roof sheds a surprising volume of water straight onto the run beneath it. Fit a short length of guttering and a downpipe that discharges outside the run, or into a water butt.
• Compaction: hens pound the same patches relentlessly. Those bare, shiny areas are where water sits. Breaking the surface with a fork in autumn helps, but cover is the real fix.
• Sheds and fences: if a neighbour's boundary or your own shed pushes water into the run, intercept it at the edge before it arrives.

Bark chips and other ground cover

Chunky bark chips are the single best investment for a small wet run. Look for pieces roughly 20–40mm across — play bark or landscape bark — rather than fine composted bark, which breaks down into sludge within weeks. Fresh softwood shavings are best avoided too: they mat down, cling to feathers and go sour quickly.

Lay it 5–8cm deep over the whole run and top it up as it disappears, which it will. Woodchip from a local tree surgeon is excellent value if it's had a few weeks to weather and isn't mostly conifer. Bark floats in torrential rain, so contain it with timber edging or old scaffolding boards, and rake it back into place every week or two.

One warning: don't use straw outdoors in wet weather. It soaks up water like a sponge and turns mouldy fast, which is a genuine risk for respiratory problems. Save straw for dry, well-ventilated nesting boxes only.

Cutting drainage channels

If water is pooling rather than draining away, a simple French drain will sort it. Dig a trench about 30cm deep along the uphill edge of the run, line it with 10cm of gravel, lay perforated drainage pipe on top, then cover with another 10cm of gravel and backfill with soil. Angle it so it discharges into a soakaway — a rubble-filled pit roughly 60cm cubed — or a planted border well away from the run.

For smaller problems, a shallow spade-width channel along the lowest edge is often enough, particularly if you fill it with gravel to stop it silting up. A bag of horticultural grit scattered over the worst standing areas works wonders too, and hens love scratching through it. Rubber matting or a few paving slabs laid as stepping stones give the birds a dry route from pop hole to feeder and keep their feet out of the worst of it.

Getting the run under cover

A covered area changes everything. You don't need to roof the whole run — just the bits that matter most: the pop hole, the feeder and drinker, and one dry corner where the hens can dust bathe and loaf.

• Clear corrugated sheets in PVC or polycarbonate are cheap, light and let daylight through. Fix them to a simple timber frame at a decent angle so rain runs off rather than pooling and sagging.
• A tarpaulin over a frame works if you pitch it properly. Never let it lie flat — a belly full of water will collapse the whole thing.
• Windbreaks, not walls. Hens need ventilation. Solid sheeting on all four sides creates a damp, ammonia-heavy fug. Use open sides facing away from the prevailing wind.
• Raise the feeder and drinker on a paving slab or a couple of bricks so they aren't sitting in the mud, and keep them under the roof.

Winter routines that keep a run workable

Good management matters as much as good kit. Pick up droppings daily if you can — it takes five minutes with a scoop and stops the litter turning sour. Once a week, fork over the bark chips to air them and rake the surface level again. Keep a bag of chips by the gate for topping up after storms.

Give the hens a dry dust bath under cover: a shallow tray of dry soil mixed with sand and a little diatomaceous earth. Add grit and oyster shell in a raised hopper, and check drinkers twice a day in freezing spells. If your run has a hard-standing corner — paving, gravel or a raised pallet platform — the birds will gravitate to it on the foulest days, which is exactly what you want.

Finally, if the run has been in the same spot for years, consider rotating it. Even a small garden can often accommodate two runs used alternately, giving each a season to recover. Fresh grass, deep chips, moving water and a dry place to stand: give your hens those four things and a British winter becomes something they simply shrug off.