Chicken not laying (UK): why it happens and what to check first

First: when it’s urgent

If you see any of the below, stop Googling and get proper help (urgent vet / poultry expert):

• Straining, repeated nest-box visits, or a “penguin stance” (possible egg issue).
• Very lethargic, not eating/drinking, or sitting fluffed up with eyes closed.
• Swollen abdomen, discharge, or blood.
• Sudden collapse or rapid deterioration.
• You strongly suspect egg binding or severe illness.

Quick checks (60 seconds)

• Is she moulting? (lots of dropped feathers, pale comb, grumpy mood).
• Has daylight dropped recently? (winter slowdown is real).
• Any recent stress: new birds, move, predator scare, bullying?
• What’s the diet right now? Layers feed available all day, or lots of treats?
• Nest boxes: clean bedding, dimmer corner, enough boxes for the flock?
• Are eggs being laid somewhere else (garden hiding spots)?
• Is she broody (stuck in box, growly, puffy, pecking)?

Likely causes (the usual suspects)

• Moult (hens often pause laying to regrow feathers).
• Winter daylight reduction (less light = fewer eggs).
• Stress (predators, bullying, changes in flock or housing).
• Diet imbalance (too many treats, not enough balanced layers feed).
• Age (older hens lay less consistently).
• Broodiness (she’s “saving eggs” even if none are there).
• Health issues (parasites, reproductive problems, illness).

What to do today

1. Reset to basics: fresh water + layers feed as the main diet; reduce treats for a week.
2. Make nest boxes irresistible: clean bedding, a darker corner, and enough space that timid birds can use them.
3. Reduce stress: tighten fox-proofing, check run space, and separate any bullied bird so she can eat and rest.
4. Track for 72 hours: appetite, droppings, posture, and whether she’s visiting nest boxes repeatedly.
5. If you see egg-straining, discharge, or sudden weakness: stop waiting and contact a poultry/avian vet.