Why Winter Is Harder on Hens Than You Might Think

A hen is a small, warm-blooded creature wrapped in a feather duvet, and she copes with cold far better than most new keepers expect. What she does not cope with well is damp. A cold, dry henhouse at minus five is far kinder than a muggy one at plus four, because wet air pulls heat out of a bird's body and encourages the respiratory complaints that spread like gossip through a flock. So the first principle of winter hen-keeping is counter-intuitive: your job is not to heat the coop, it is to dry it and air it.

That changes how you spend your mornings. Instead of fretting about frost on the water trough, you will be lifting nestbox liners, turning bedding, and watching combs for the tell-tale pale tips that mean trouble.

Ventilation Beats Insulation Every Time

Hens produce a surprising amount of moisture simply by breathing. A flock of six in a sealed ark will soak the air and the bedding within a fortnight, and that damp is the real enemy. Your aim is a draught-free but freely ventilated house: high-level vents, ideally on two opposing sides, letting moist air escape above the birds' heads rather than blowing across their backs.

Blocking every gap with newspaper in November is the classic beginner's mistake. If you can smell ammonia when you open the pop hole, you have a ventilation problem, not a warmth problem. Aim for air you can feel moving gently at head height when you stand inside, but nothing that ruffles the feathers of a hen sitting on the perch.

• Keep top vents open all winter, even on frosty nights.
• Close low-level vents facing prevailing wind, but never seal them all.
• If condensation runs down the inside of the roof, add more ventilation rather than more bedding.
• Raise the house slightly on bricks or bearers so the floor stays off wet ground.

Damp Bedding, Dirty Feet, and the Daily Routine

Deep litter works beautifully in winter provided it stays dry. A base of wood shavings or chopped straw, topped up rather than stripped out, builds a slow compost that gives off a little gentle warmth. But the moment it clumps, smells sour, or feels cold and clammy to the hand, it has to come out. Hens standing on wet litter chill quickly through their feet, and that is how a healthy bird ends up huddled and miserable.

Check the bedding every morning. Remove any patch soaked beneath the drinker, and keep drinkers outside the house if you possibly can, or raised on a slatted stand if you cannot. Frozen drinkers are a daily battle; two smaller ones swapped at breakfast and again at dusk save an awful lot of chiselling.

Damp also comes in on feathers. If your run is muddy, add a layer of woodchip or bark so birds can scratch without plastering themselves. Mud balls on the toes are worth checking for, particularly in feathered-footed breeds, which are far more prone to frostbitten toes than clean-legged ones.

Grit, Feed, and the Extra Calories Question

Digestion is how a hen keeps warm; the fermentation of food in her crop and gut is her central heating. That means winter feeding is not just about quantity but about quality and timing. A good layers' pellet in the afternoon, so the crop is full at roost, gives her something to work on through the coldest hours. Scratch grain scattered late in the day is traditional for exactly this reason.

Do not forget grit. Without insoluble grit in the gizzard, a hen cannot grind her food properly, and in winter, when she is eating more, the lack shows up fast. Keep a small hopper of mixed grit available at all times, and a separate dish of oyster shell for calcium if you are not feeding a complete layers' ration.

• Feed a balanced layers' pellet as the main ration, not scraps alone.
• Offer a handful of mixed corn or wheat in the late afternoon.
• Keep insoluble grit and oyster shell available free-choice.
• Warm a little porridge or soaked mash on bitter mornings; it is well received and easy to digest.
• Never let drinkers freeze, and check them twice daily in a hard frost.

Combs, Wattles, and Signs of Frostbite

A single comb on a large breed is a radiator with no insulation, and in a sharp easterly it can freeze. Frostbite shows as a waxy, pale, then white and brittle patch on the comb tips or the points of the wattles. It hurts, and although most hens recover, the affected tissue will blacken and may drop off.

The old remedy is to rub a little petroleum jelly or goose fat on combs and wattles on the coldest evenings. It is not a cure, but it does keep damp off the skin, and it is a good moment to handle each bird and check her condition. Do not rub snow or warm water on frozen tissue; let it thaw naturally in a cool place.

Good ventilation in the house, perches wide enough for the whole foot, and no drips from the roof above the roost all reduce the risk. Breeds with rose combs, such as Wyandottes, and small-combed types suffer far less, which is worth remembering when you next add stock.

Water, Weather, and Keeping a Close Eye

Winter is when illness hides. A hen that stands hunched on the floor, tucks her head, or stops coming to the feeder is unwell, not simply cold. Weigh the risk of muddy feet against the value of routine: a quick evening count on the perch and a morning look at droppings will tell you more than any amount of fretting.

Give them somewhere dry to dustbathe, even if it is a covered corner with a bucket of dry earth and wood ash. Give them a sheltered spot out of the wind, and if the ground freezes hard, scatter a little grain on the bare earth to keep them moving. Keep the run poached areas rested, and rotate if you have the space.

Do all this and your flock will come through to February in good feather, laying again as the days lengthen. Winter is not a season to fuss over your hens; it is a season to be tidy, regular, and observant. Damp out, air in, grit down, and a warm hand on a cold comb now and then. That is the whole art of it.