How Long Do Chickens Live? Lifespan and Life Stages

Last reviewed on 30 April 2026.

Most people who get chickens for the first time imagine the productive period — three or four hens, eggs in the kitchen — and don't think much beyond that. The reality is longer and more interesting. A healthy backyard hen can live well into her seventh or eighth year. The arc of those years has predictable stages, each with its own care priorities, common problems and shifting expectations. This guide walks through the whole arc so the second half doesn't catch you off guard.

The headline numbers

These are realistic ranges for healthy backyard birds in well-managed flocks, not industry averages. Commercial layers are typically retired around 18 months because production drops below an economically viable point — not because the birds are at the end of their lives.

Stage 1: Chick (0–6 weeks)

The most fragile period, defined by inability to thermoregulate. A chick depends on a brooder for the first three to four weeks, then on the flock and its own feathers. Daily concerns are heat (90–95°F at week one, dropping by 5°F per week), clean water with electrolytes during the first days, starter crumb feed, and watching for pasting up around the vent. Mortality in the first fortnight is the single most common loss; biosecurity is the single most useful preventative — see quarantine procedures.

What to expect: rapid feather development, growing flightiness, and the first signs of pecking-order — chicks practising on each other from a few days old. Sex differences become guessable from about week four for most breeds.

Stage 2: Pullet (6 weeks–point of lay)

From feathered-out to first egg, typically four to six months. The bird looks adult by around week sixteen but is still growing internally. Move from chick crumb to a grower feed at six to eight weeks, then to layer feed only after the first egg arrives — earlier introduction of the higher-calcium layer feed can damage developing kidneys.

This is also when the pecking order is established for life. Adding pullets to an existing adult flock is much easier at this stage than at full sexual maturity, and the introducing new chickens guide covers the process.

Stage 3: Point of lay and the first year

The first egg often appears between eighteen and twenty-four weeks for hybrids, twenty-two to thirty weeks for heritage breeds. First eggs are small, sometimes wonky-shelled or yolkless ("fairy eggs"), and the laying rhythm takes a few weeks to settle. Through the first year, a hen will lay closer to her breed maximum than at any other point — for hybrids that can mean 280–320 eggs; for heritage breeds 180–250.

Common first-year concerns: a soft-shelled egg or two (usually fixable; see soft-shelled eggs), broodiness in some breeds (see broody hen), and the first proper moult late in the year, when feathers are replaced and laying pauses for six to twelve weeks (molting).

Stage 4: Peak adult layer (year 2)

Production typically drops 10–20% in the second year, but eggs are larger and shells are usually stronger. Behaviour stabilises, the pecking order is well understood, and the flock looks at its most settled. This is the period most backyard keepers describe as the "easy" phase.

Care priorities shift toward parasite control and consistent nutrition. Keep an eye out for the first reproductive issues in hybrids — internal lay, soft-shelled eggs returning, or subtle weight loss. The why aren't they laying? guide covers diagnosis when production drops more than expected.

Stage 5: Mid-life (years 3–4)

Production drops further — 30–50% off peak — and the gap between hybrid and heritage breeds widens. Hybrids may slow markedly in year three; heritage breeds keep going at a reduced but reliable rate. Hens go through a longer autumn moult each year, sometimes a "soft moult" mid-summer too. Combs may flop slightly, especially in larger-combed breeds.

This is the stage where reproductive cancers and internal lay problems start to show in hybrid layers. There is no reliable way to prevent these — they are a consequence of the high lifetime egg count these breeds have been bred for. Watch for tail-down, fluffed posture, "penguin stance," and unexplained weight loss; the behaviour guide covers the visible cues.

Stage 6: Retired hen (year 5 onwards)

Laying becomes occasional or stops altogether. The hen is still social, still active, still part of the flock — but her physiological priorities have shifted. Calcium needs drop because she's not making shells; protein needs hold steady; mobility and joint comfort become more important. A senior hen on layer feed can develop kidney issues from the high calcium content; switch to an "all-flock" feed with a separate calcium source for any still-laying birds.

Concerns at this stage are practical: keep perches lower so a less-agile hen can reach them, watch for arthritis (a stiff first hour after roost), check for tumours and lumps during regular handling, and accept that a peaceful death from old age in the coop is a real outcome to plan for. The senior care guide covers the day-to-day adjustments.

Decisions that affect lifespan

Five levers do most of the work. Breed choice is the largest — heritage breeds outlast hybrids by years on average; see the breed selector quiz. Predator-proofing prevents the leading cause of unexpected loss; the predator-proofing guide covers what works. Good nutrition protects immune function; see the nutrition guide. Stocking density below the minimums in the coop size calculator raises injury and disease rates. And biosecurity — the quarantine procedures guide — prevents the catastrophic losses that follow a new bird brought in without quarantine.

Planning for the long arc

Two practical decisions usually come up around year three. The first is whether to add younger birds — most keepers do, both to maintain egg supply and to avoid the situation where the entire flock ages out at once. The transition adds a year of mixing tension but spreads the bell curve. The introductions guide covers the mechanics.

The second is whether you are prepared to keep non-laying hens. Some keepers always do; others rehome retired birds; some draw a hard line. There is no objectively correct answer, but the decision is easier to make in advance than in the moment.

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