Lift the House Off Wet Ground

The single biggest favour you can do a small flock in winter is to get them off the ground. Cold they can handle; wet they cannot. A coop sitting directly on soil, or on churned clay, pulls damp up through the floor and into the bedding, and once litter is damp the birds breathe moisture all night. Respiratory trouble and chilled feet usually start here rather than with the temperature itself.

Sit the house on slabs, bricks or pallets, raising the floor 15–20cm clear of the soil at the very least — more if your ground is heavy. Anything that lets air move underneath is doing useful work. If the coop sits in a hollow where water gathers, move it now, whilst the ground is still soft enough to take a barrow. Then keep the litter deep: start with a good layer of wood shavings or chopped straw and top it up rather than mucking it all out, so the birds always stand on dry material. Never let it become compacted or sour.

Break the Wind, Keep the Air Moving

Hens cope with frost far better than they cope with draughts. What chills them is wind at body level, cutting under feathers and through the pop hole. A solid barrier on the prevailing side of the run makes an enormous difference — wattle hurdles, a stack of straw bales, or a couple of pallets faced with ply. Position it a metre or two back from the house so it slows the wind rather than simply shifting it.

At the same time, resist sealing everything up tight. Damp air must escape, or you will find condensation running down the inside of the roof and a flock with coughs by January. Keep ventilation high — an open ridge, louvres or a gap under the eaves — and draughts low. If you can feel a breeze at ankle height inside the coop but not at head height, you have it about right.

Water Twice a Day, Without Fail

Frozen drinkers are the most common cause of a winter setback, and they are entirely preventable. Check and refresh water first thing in the morning and again in the late afternoon, and be realistic: on a hard frost that second visit is not optional.

Keep two sets of drinkers, so one can thaw indoors whilst the other is in the run. A flask of hot water poured around a frozen drinker releases it quickly — never pour boiling water into a plastic one. Shallow black rubber bowls thaw faster in weak sun than metal or white plastic. In a hard spell a larger drinker freezes more slowly than a small one, and a floating object slows things a little, though nothing substitutes for the twice-daily check. Throw the ice out of the run; standing patches make for skidding, bruised birds.

Feed for Warmth, Not Just Bulk

Digestion generates heat, and this is where an afternoon feed earns its keep. Keep layers' pellets available through the day as normal, so the birds get the protein and calcium they need, then scatter mixed corn or maize an hour or so before dusk. Breaking that down overnight keeps their internal furnace ticking through the coldest hours.

Be sensible with quantities — a generous handful per bird is plenty. Too much and you will have fat hens, fewer eggs and a flock that ignores its pellets. Warm mash on a bitter morning goes down well and gets fluids into birds reluctant to drink. Keep grit and oyster shell topped up at all times, and site feeders under cover so they do not fill with snow.

Watch the Birds, Not Just the Thermometer

Spend five minutes actually looking at your flock each day. Pale or dark tips on combs and wattles mean frostbite, most likely in birds with large single combs; a smear of petroleum jelly helps on the worst nights. Pick mud balls off feet and check legs for the cracked, reddened skin that cold and wet bring on. Run a hand along a breastbone now and then — a sharp ridge means a bird is losing condition before you would notice it from the kitchen window.

Boredom is a real winter problem in a confined run. Hang a cabbage or a couple of root vegetables from a string, scatter a little scratch feed into the litter, and give them somewhere dry to dust bathe. Feather pecking usually starts with nothing better to do.

Let Them Slow Down

Egg numbers will fall and many birds will moult. That is not a failure, it is the natural rhythm of a small flock, and pushing extra light into a shed to force production through December is rarely worth it for a few garden birds. Collect eggs promptly so they do not freeze and crack in the nest box, and keep the box lined with clean, dry straw.

Do these few things well — dry feet, still air, thawed water, a warm crop at dusk — and your flock will come through to spring in good order, ready to make the most of the longer days.