Why Prevention Beats Treatment on a Smallholding

A small flock is a closed world, and chickens are masters at hiding illness. By the time a hen looks sorry for herself, she has usually been unwell for days. The encouraging news is that the complaints which cause most smallholder worry — red mite, scaly leg, sour crop and the odd respiratory sniffle — are far easier to prevent than to cure. Prevention comes down to three cheap fundamentals: keep housing dry, dust regularly with diatomaceous earth, and quarantine every new bird before it meets the flock. Get those right and you will spend far more time collecting eggs than nursing patients.

Red Mite: The Night-Time Stowaway

Red mite lives in the cracks of the coop rather than on the bird. It emerges at dusk, feeds, and retreats before dawn, which is why keepers miss it for months. Watch for hens reluctant to go to roost, pale combs, a dip in laying and grey, ash-like dust around perch ends. Run a white tissue along the underside of a perch after dark — if it smears red, you have mites.

• Dust perches, nest boxes, crevices and the pop hole frame with diatomaceous earth every few weeks, wearing a mask.
• Choose smooth timber and paint it well. Mites hide in cracks, rough sawn boards and the seams of felt roofs.
• Keep bedding thin in summer and replace it weekly. Deep litter is warm and humid, which mites adore.
• Scrub the coop with a poultry-safe disinfectant and let it dry completely before birds return.
• Provide a dust bath of dry soil, sand and a scoop of diatomaceous earth — the hens will do some of the work themselves.

If you inherit an infestation, repeat treatment every five to seven days for three weeks to break the hatching cycle.

Scaly Leg Mite: Slow but Unsightly

Scaly leg mite burrows beneath the leg scales, lifting them so the shanks look crusty, chalky and ridged. It spreads by direct contact, so it travels quickly through a flock and arrives with bought-in birds. Check legs monthly and always inspect new arrivals during quarantine.

For treatment, soften the scales with petroleum jelly or a vegetable oil and paraffin mix, working it well underneath. Some keepers use surgical spirit, but avoid it on broken skin. Repeat weekly for three to four weeks until clean, smooth new scales appear. Dry bedding and regular checks keep the problem rare.

Sour Crop, Impacted Crop and the Forage Trap

Sour crop is a yeast overgrowth in the crop, usually a symptom of something else: an impaction from long grass or baler twine, or a bird that has been off colour. The signs are a swollen, squishy crop first thing in the morning, sour breath, head shaking and lethargy.

Isolate the bird and withhold food for twelve to twenty-four hours, offering water with a splash of apple cider vinegar — roughly 10ml per litre. A spoonful of live natural yoghurt can help restore gut balance. If the crop feels hard rather than squishy, suspect impaction: offer mixed poultry grit and a little olive oil, and ring your vet if it has not cleared within a day.

• Chop long grass and avoid letting birds gorge on lush spring growth.
• Skip bread, mouldy scraps and soggy kitchen waste.
• Keep mixed grit available at all times.
• Feed treats late afternoon in small handfuls, after the main ration.
• Raise feeders slightly and clean them weekly to discourage mould.

Respiratory Trouble and the Quarantine Habit

Rattling breath, sneezing, bubbly eyes and a purple tinge to the comb usually mean mycoplasma or infectious bronchitis. These travel with new birds, so quarantine for at least three to four weeks in a separate run, out of sight and sound of the main flock. Feed and water the newcomers last, and change your boots and wash your hands in between.

Ventilation matters as much as warmth. If you can smell ammonia, airflow is too low; if feathers ruffle at perch level, there is a draught. Aim for high-level vents, dry dust-extracted bedding and a coop that never sweats.

A Simple Weekly Routine

• Daily: count heads, watch droppings and note who is first to the feeder.
• Weekly: handle a few birds — clear eyes, clean vents, smooth legs, an empty crop in the morning.
• Monthly: dust with diatomaceous earth, scrub drinkers, check for leaks and red mite again.
• Seasonally: full coop clean, repaint, worm as advised by your vet, and review bedding stores.

Keep a small notebook of anything unusual. Most poultry ailments, spotted early and treated with dry housing, a dusting of diatomaceous earth and a fortnight of quarantine discipline, cost you an afternoon rather than a bird.