Spotting Trouble Early — Pasty Butt, Splayed Leg, Chilling and More
From Hatch to Coop: Raising Strong, Healthy Chicks — Part 5
Most chick losses are preventable — and most of the ones that aren't caught in time were spotted too late rather than not at all. Chicks are small, they go downhill fast, and they hide illness well. But the common problems all have clear early warning signs, and nearly every one has a simple fix if you catch it in the first day or two. This article is the field guide: what to watch for, and what to do about it.
In Part 4 we fed the brooder well. Now let's learn to read the chicks and act early.
The Daily Health Check
Get into the habit of a quick head-to-tail look over the whole brooder a few times a day. You're checking for the things a healthy chick does — and noticing anything that stands out. A healthy chick is bright-eyed, active, feeding and drinking, cheeping contentedly, and moving normally. Warning signs are the opposite: a chick standing alone, eyes half-closed, fluffed up and hunched, not eating, quiet or peeping in distress, or a droopy wing or odd gait.
The golden rule with chicks: a chick that looks a bit off in the morning can be dead by evening. Act on the first sign rather than waiting to see if it sorts itself out.
Pasty Butt (Pasting Up)
The most common early problem. Pasty butt is when droppings cake and dry over the vent, blocking it. If the vent seals completely, the chick can't pass droppings and it becomes fatal — but it's easy to spot and easy to fix.
What to do: check every chick's rear end daily for the first week. If you find a caked vent, dampen it with warm water on a cloth or cotton bud and gently soften and remove the blockage — don't pull dried droppings off dry, as you can tear the delicate skin. Dry the chick off afterwards and pop it straight back under the heat so it doesn't chill.
Why it happens: pasty butt is usually a stress signal — most often chilling or overheating, sometimes the stress of a long trip, or feed and water issues. If several chicks are pasting up, treat it as a sign your brooder temperature is off and check it (Part 3). Fixing the underlying cause matters as much as clearing the individual chick.
Splayed Leg (Spraddle Leg)
A chick with splayed leg can't stand — one or both legs slide out sideways and it sits with legs splayed flat. It usually comes from a slippery surface in the first days of life, before the leg muscles are strong, which is exactly why we recommended paper towel over shavings for grip in Part 2.
What to do: caught early, it's very fixable. A soft hobble — a small figure-eight of a plaster or a soft band linking the legs at the correct spacing for a few days — holds the legs in the right position while the chick strengthens. Give it good grip underfoot and it will usually come right within days. The key is acting immediately; the longer the leg sets in the wrong position, the harder it is to correct.
Chilling
Covered throughout this series because it's the biggest killer of young chicks. A chilled chick goes quiet, stops eating and drinking, becomes lethargic and huddles or lies still. Left cold, it fades and dies — often overnight.
What to do: warm the chick gradually. Cupping it in your hands or placing it back under the heat source revives a mildly chilled chick quickly. Once it's warmed and active, a little vitamin-and-electrolyte water can help it recover. Then — as with pasty butt — fix the cause: check the brooder temperature and hunt down any draught. One chilled chick is bad luck; several is a temperature problem.
Dehydration
A chick that never found the water, or one recovering from a stressful start, can dehydrate within a day. Signs are lethargy, a chick not drinking, and in advanced cases a gaunt look. Newly arrived posted chicks are especially at risk.
What to do: offer room-temperature water immediately, dipping the beak gently to start it drinking. A vitamin-and-electrolyte supplement in the water for the first day or two helps a run-down chick rehydrate and recover. Make sure the drinker is accessible to the smallest chick and that a bigger, bolder chick isn't guarding it.
Coccidiosis — Know the Warning Signs
Coccidiosis is a gut parasite that thrives in warm, damp brooder conditions, and it's one of the more serious threats to young birds. We cover prevention in full in Part 6, but every hatcher should recognise the warning signs so they can act fast:
- Chicks looking hunched, fluffed up and lethargic.
- Loose droppings, sometimes with blood or a reddish-brown tinge — a classic red flag.
- Chicks going off their food and losing condition.
- More than one chick affected around the same time.
What to do: coccidiosis moves fast and can wipe out a batch, so if you see blood in droppings or several chicks going downhill together, treat it as urgent. A poultry coccidiosis treatment (an amprolium-based product) is the standard response, and improving brooder hygiene at the same time is essential. If you're unsure, ring us or a poultry vet — this is one where quick action genuinely saves lives.
Pecking and Picking
Chicks that peck at each other's toes, vents or feathers are usually telling you something about their environment. The main triggers are overcrowding, too much heat, boredom, or too-bright constant light (another mark against heat lamps, per Part 2). Left unchecked it can escalate to real injury and even cannibalism.
What to do: address the cause — more space, correct the temperature, reduce light intensity, and give something to occupy them like a small perch or a hanging green. Separate and treat any chick that's been drawn blood on, since blood draws more pecking.
When to Isolate a Chick
Any chick that's visibly unwell, injured, or being picked on should be moved to a warm, quiet recovery space where it can rest, eat and drink without competition — and, if it might be contagious, away from the others. This is exactly what a TLC brooder or intensive care unit is designed for: a controlled, warm, easy-to-monitor space to nurse a weak or sick chick back to health. For a serious hatcher, having one ready makes the difference between saving a struggling chick and losing it.
Practical Tips for Catching Trouble Early
- Do a quick head-to-tail check of the whole brooder several times a day.
- Check every vent for pasty butt daily in the first week; clear gently with warm water.
- Give good grip underfoot from day one to prevent splayed leg; hobble early if it appears.
- Treat one chilled or pasted chick as bad luck and several as a temperature problem — fix the brooder.
- Keep water clean and accessible; use electrolytes to help run-down chicks recover.
- Learn the coccidiosis warning signs — blood in droppings means act now.
- Fix pecking at the source: space, heat, light and boredom.
- Keep a warm recovery space ready for any chick that needs isolating.
What's Next?
In Part 6, we go deeper on keeping the brooder healthy — the hygiene routine that prevents most disease, coccidiosis prevention in detail, biosecurity basics, and the Vetafarm health products worth having on the shelf before you need them. Spotting trouble early is half the battle; the other half is setting things up so trouble rarely starts.
If you've got a chick that's struggling and you're not sure what you're looking at, send us a message with a photo or give us a ring — we breed poultry ourselves and we've seen most of it. 1300 771 457 or info@uneekpoultry.com.au.