Situation guide · Updated July 2026
Rats in the Chicken Coop: Control That Won't Hurt Your Birds
A chicken coop is a rat resort: free grain, fresh water, warm bedding, and eggs for dessert. The hard part isn't killing rats — it's doing it in a space where curious hens peck at everything at ground level. Every method below is chosen for one test: it works on rats and cannot touch a chicken.
What rats actually cost a flock
- Feed theft. A rat eats roughly an ounce of feed a day and fouls far more with urine and droppings. A modest colony quietly takes a meaningful bite out of every feed bag.
- Eggs and chicks. Rats take eggs readily, and a bold rat will kill chicks and injure sleeping bantams. Bitten combs and missing eggs with chewed shells in a corner are classic sign.
- Disease and stress. Rats contaminate feed and water, can carry pathogens and mites into the coop, and their nighttime traffic keeps hens off the roost and off their laying rhythm.
- Structural gnawing. They tunnel under floors and widen every small gap into a doorway for the next generation.
Confirm it's rats, not mice: ½–¾″ droppings, burrow openings 2–3″ wide under walls or ramps, and greasy rub marks along runs. (Mice matter less and need smaller traps — see rat vs mouse.)
Bird-safe trapping, ranked
1. A self-resetting trap mounted out of reach
The Goodnature A24 CO2 trap is the cleanest fit for a coop: it mounts vertically on a post or wall, kills instantly inside an enclosed head, resets itself up to 24 times, and drops the carcass below for morning pickup. Mount it 12″ or more off the ground on the outside of the run wall — rats climb to it easily; chickens can't get their heads into it. It's the expensive option, but for a permanent food source like a coop, a permanent trap earns its keep. More on this class in our best rat traps roundup.
2. Snap traps inside tamper-resistant stations
A standard snap trap becomes coop-safe once it's locked inside a tamper-resistant trap station — a box with rat-sized side entries no beak or paw can reach through. Place stations along the outside walls of the coop and run, on the rat runways (look for rub marks and flattened grass), entry holes facing the wall. Technique and models: the snap trap guide.
3. Night sets, picked up at dawn
If you'd rather not buy stations: set snap traps inside the run only after the birds are locked in the coop at night, and collect every trap before you open up in the morning. It works — rats do most feeding after dark — but it lives or dies on your discipline. One forgotten trap is one injured hen, so count traps out and count them back.
4. Bucket traps outside the run
Rolling-log bucket traps earn their keep around barns and feed sheds where rat numbers are high. Keep them strictly outside the run and fenced from poultry — a bucket trap will catch a chick as happily as a rat. For placement around outbuildings, see outdoor rat trapping. Bait any of these with what the rats came for: feed, plus a smear of peanut butter (bait guide).
Cut the food supply
Trapping fails against a coop that keeps feeding the survivors. This half matters more:
- Treadle feeder. A weighted treadle feeder opens only under a chicken's weight and is the single biggest anti-rat upgrade a coop can get. Expect a 1–2 week training period with the treadle propped open.
- No feed overnight. If you don't run a treadle feeder, take feeders in at dusk. Rats do their shopping at night; an empty coop teaches them to shop elsewhere.
- Metal storage. Feed sacks go into galvanized cans with tight lids — rats open plastic bins on a schedule of their choosing.
- Clean up spills and rake dropped scratch grain before dark. Scatter-fed treats in the afternoon, not the evening.
- Water: nipple waterers instead of open pans deny rats the drink they need daily.
Harden the coop
Chicken wire keeps chickens in; it does not keep rats out — they pass through or gnaw the twists. Rat-proofing means hardware cloth:
| Mesh | Stops | Use it on |
|---|---|---|
| ½″ hardware cloth | Rats, weasels, snakes (most) | Runs, windows, vents — the practical default |
| ¼″ hardware cloth | All of the above plus mice and juvenile rats | Feed rooms, brooders, anywhere chicks live |
| Chicken wire | Chickens only | Nothing that's meant to exclude predators or rodents |
Work the perimeter: skirt the run with a hardware-cloth apron buried 12″ down or L-footed 12″ outward to stop burrowing; screen every vent and window; sheet-metal or ¼″-cloth the underside of a raised floor; and close every gap over ½″ at corners, door edges, and where roof meets wall. A raised coop 8–12″ off the ground denies rats the classic under-floor nesting void. The same materials logic as house-side exclusion applies — the principles are in the master plan.
Last hygiene note: wear gloves when cleaning rat droppings out of a coop, wet them first with a 1:10 bleach solution, and never dry-sweep them where you or the flock breathe the dust.
FAQ
How do I get rid of rats in a chicken coop without hurting my chickens?
Use only enclosed or out-of-reach methods: an A24 self-resetting trap mounted a foot or more off the ground, snap traps locked inside tamper-resistant stations along the outside walls, or traps set inside the run only after birds are shut in at night and removed at dawn. Pair trapping with a treadle feeder and sealed feed storage.
Can I use rat poison near a chicken coop?
No. Chickens eat spilled bait and dead rodents, poisoned rats are a secondary-poisoning risk to dogs, cats, and owls, and contaminated carcasses can end up anywhere on the property. Enclosed traps do the same job with none of those risks.
Will rats kill chickens?
Rats mainly steal feed and eggs, but bold rats do kill chicks, and they can bite roosting adult birds. Missing eggs with chewed shells, injured combs or toes, and stressed hens that stop laying are all consistent with rat pressure.
What size hardware cloth keeps rats out of a coop?
Half-inch hardware cloth stops adult rats and is the practical standard for runs, vents, and windows; quarter-inch also stops mice and juvenile rats and is worth using around brooders and feed rooms. Chicken wire keeps rats out of nothing.
Do treadle feeders really stop rats?
Yes — a weighted treadle feeder only opens under a chicken's weight, which removes the overnight buffet that sustains a colony. Combined with metal feed storage and no feed left out after dusk, it removes the main reason rats target coops. Expect a week or two of training your hens to use it.