Rats in a chicken coop are a real problem, and you need to act fast
Rats eat chicken feed, contaminate water, steal eggs, and can injure or kill chicks and smaller birds. Once they move in, they breed quickly—a female rat can have five to ten litters a year—so a small problem becomes a large one within weeks. The fastest way to stop them is to remove their food source, block their entry points, and trap or poison the ones already inside. You cannot wait for them to leave on their own.
The reason rats come to a coop is straightforward: food and shelter. Spilled feed, open grain storage, and dark corners under nest boxes are exactly what rats want. Fixing these three things stops new rats from arriving and makes the coop less attractive to the ones already there.
Key Takeaways
- Store all chicken feed in metal or heavy plastic containers with tight-fitting lids, never in open bags or wooden bins.
- Seal every gap larger than a quarter-inch around the coop's foundation, walls, and roof—rats can squeeze through surprisingly small holes.
- Set snap traps or electronic traps inside the coop baited with peanut butter or dried fruit, and check them daily.
- Remove spilled feed every evening and do not leave water bowls out overnight, as rats will drink from them and return.
- If you have a serious infestation, call a pest control professional who can assess entry points and recommend poison baiting stations outside the coop.
Remove the food source first
Rats will not stay in a coop where they cannot eat. The moment you stop leaving food out, you cut off their reason to be there. Start by storing all dry feed in metal garbage cans with locking lids or heavy plastic storage bins with tight-fitting covers. Wooden bins and open bags are invitations. Keep the containers off the ground on a shelf or pallet so rats cannot tunnel underneath.
Pick up spilled feed every evening before dark. Rats are nocturnal and will come out to eat once the sun goes down. Even a handful of scattered pellets is enough to keep them coming back. Sweep the coop floor and under feeders, and do not leave water bowls sitting out overnight—rats need water, and a full bowl is a reason to return. You can leave water during the day and remove it before dusk, or use a nipple waterer that rats cannot drink from easily.
Do not compost near the coop or leave kitchen scraps in an open pile. Rats will eat vegetable waste and eggshells just as readily as grain. If you compost, use a bin with a locking lid and keep it at least 10 feet away from the coop.
Seal every entry point and gap
Rats can squeeze through a hole the size of a dime. Walk around your coop in daylight and look for gaps around the foundation, where the walls meet the roof, around pipes and vents, and under doors. Mark each one with chalk or tape so you do not miss any in a second pass.
Use hardware cloth (a metal mesh finer than chicken wire) to cover large openings like vents and the gap under a door. Cut it to size and staple it firmly so rats cannot peel it back. For smaller gaps, use steel wool packed tightly into the hole, then seal over it with caulk or expanding foam. Rats cannot chew through steel wool the way they can through plastic or rubber. For gaps around pipes, use metal flashing or hardware cloth rather than caulk alone—rats will straightforward chew through caulk.
Check the foundation line where the coop sits on the ground. If there is a gap between the wood and the soil, bury hardware cloth 6 inches deep and extend it 12 inches out from the coop wall. This stops rats from digging underneath. If your coop has a wooden floor, rats may tunnel up from below—in that case, consider adding a hardware cloth floor or raising the coop higher off the ground.
Trap the rats already inside
Snap traps are the most reliable way to kill rats quickly. Set them along the walls where you have seen droppings or gnaw marks, because rats follow the same paths repeatedly. Bait them with peanut butter, a small piece of dried fruit, or a bit of nesting material like straw. Check traps every morning and evening—a dead rat left in the coop will attract flies and smell.
Electronic traps kill rats with a high-voltage shock and are less messy than snap traps. They cost more upfront but are reusable and do not require you to touch a dead animal. Bait them the same way and check them daily.
Avoid poison pellets or blocks inside the coop itself. Rats may eat poison and then die in a wall cavity or under a nest box, where you cannot reach them and the smell will linger for weeks. If you use poison, place it in tamper-resistant bait stations outside the coop, away from where chickens can peck at it. Bait stations are locked boxes that only rats can enter. Check them weekly and replace poison as needed.
Do not use glue traps. They are inhumane and often fail to kill the rat quickly. Snap traps and electronic traps are faster and more humane.
Clean up the coop to remove hiding spots
Rats need dark, quiet places to nest. Remove clutter—old boards, piles of straw, unused equipment—from inside and around the coop. Keep the area under nest boxes clear by removing old bedding regularly. Rats will burrow into deep litter, so change bedding often and do not let it pile up.
Trim grass and weeds around the coop to at least 12 inches away from the walls. Rats use tall grass as cover when moving between the coop and their burrows. A clear perimeter makes it harder for them to approach unseen.
When to call a professional pest control service
If you have set traps for two weeks and are still seeing rats, or if you find evidence of a large population (many droppings, multiple burrows, or chewed wires), call a pest control professional. They can identify entry points you may have missed, set up a baiting program outside the coop, and monitor the infestation over time. This costs money, but a serious rat problem can damage the coop structure and spread disease to your flock.
Tell the pest control company that you keep chickens so they avoid methods that could harm your birds. Most professionals will use outdoor bait stations and traps rather than anything inside the coop itself.
Prevent rats from coming back
Once you have cleared the infestation, keep it that way by sticking to the habits that stopped them in the first place: sealed feed storage, no spilled grain, sealed entry points, and a clean coop. Check for new gaps or damage every few months, especially after storms or if you notice fresh droppings. Rats will try again if conditions improve, so maintenance is ongoing.
Keep a snap trap or two set inside the coop year-round as an early warning system. If you catch a rat, you know they are trying to return and you can tighten your defenses before the population grows.
Frequently Asked Questions
Can rats kill my chickens?
Adult chickens are usually too large for rats to kill, but rats will attack chicks and smaller breeds like bantams. Rats also bite at combs, wattles, and feet, causing wounds that can get infected. The bigger threat is disease—rats carry salmonella and other pathogens that spread through contaminated feed and water.
Will my chickens eat rat poison?
Yes, if poison is left where chickens can reach it. Always use tamper-resistant bait stations outside the coop, locked so only rats can enter. Never scatter poison pellets inside the coop or in areas where chickens scratch.
How long does it take to get rid of rats?
If you remove food, seal entry points, and set traps all at once, you should see a sharp drop in activity within one to two weeks. Catching the last few rats may take another week or two. A serious infestation can take a month or longer, especially if you are using poison bait stations and waiting for results.
Do cats or dogs help keep rats out of the coop?
Cats will hunt rats, but they also hunt chickens and eggs, so they are not a reliable solution. Dogs can deter rats by their presence and noise, but they cannot seal gaps or remove food sources. Use cats or dogs as part of your defense, not as your only defense.
What if rats keep coming back after I trap them?
Rats are returning because there is still a food source, an entry point you missed, or a nearby burrow system. Walk the coop again and look for gaps you may have overlooked, especially around the foundation and roof line. Check that your feed storage is truly sealed and that you are not leaving water or spilled grain out overnight. If the problem persists, call a professional to identify what you are missing.