A small chicken coop in winter needs slightly more attention than in summer. Cold itself is rarely the problem for hens. They have insulating feathers, can roost together for warmth, and tolerate temperatures well below freezing if dry and out of the wind. The real winter risks are dampness, frostbite from poor ventilation, frozen water, and the boredom that leads to feather-pecking.
This guide walks through the practical steps to winterise a small coop without overengineering it.
Cold versus damp
Hens tolerate cold far better than damp. A dry, ventilated coop at -10C is fine. A damp coop at +5C causes respiratory issues and frostbite. Ventilation is the single most important winter feature.
Ventilation: more, not less
The instinct is to seal up a coop for winter. Resist it. Hens produce moisture through breathing. That moisture must escape, or it condenses on combs and wattles, causing frostbite.
Keep vents at the top of the coop, well above roost height, open year-round. Block only the lowest vents that allow ground-level wind through.
Bedding for winter
- Increase depth to 10-15 cm (deep litter method).
- Pine shavings or straw both work; deep litter generates a small amount of warmth as it decomposes.
- Top up rather than fully replace through winter.
- Full clean-out in early spring.
Water management
- Use a heated water bowl or heated base under a metal waterer if temperatures regularly drop below freezing.
- Otherwise, refill twice daily with warm (not boiling) water.
- Tip out and dry any frozen ice rather than pouring water onto it.
Roost considerations
Wide flat roost bars (5+ cm) allow hens to cover their feet with their bodies as they sleep, preventing toe frostbite. Avoid narrow round perches in winter.
Feed in winter
- Increase ration slightly; hens burn more calories staying warm.
- Add cracked corn or scratch grains in the evening; the digestion generates body heat overnight.
- Hot oatmeal occasionally on freezing mornings; a small treat that warms them up.
Boredom and feather pecking
Hens confined to a small run all winter become bored, which manifests as feather-pecking and squabbling. Counter with:
- Hanging a cabbage or other tough vegetable for them to peck at.
- Scattering scratch grains across the floor.
- Adding interesting elements (logs, low branches) to the run.
- Allowing limited free-ranging on mild days.
When supplemental heat is needed (rarely)
For healthy adult hens of cold-hardy breeds, heat is rarely necessary above -15C. Use heat only for:
- Young chicks (until 6 weeks).
- Sick or injured birds.
- Tropical breeds in genuine cold.
- Extreme cold snaps (below -20C).
Egg production in winter
Egg production drops naturally with shorter days. By the winter solstice, most hens have stopped or significantly reduced laying. This is normal. Some keepers add supplemental light to maintain laying; we prefer to let the birds rest.
Further reading
Two authoritative resources we recommend if you want to go deeper on this topic:
Frequently asked questions
