Rats move into chicken coops for food and shelter, and you need to remove both to make them leave
Rats live in chicken coops because they find three things they need: chicken feed, water, and dark spaces to hide and nest. You cannot poison your way out of a rat problem if the food and shelter are still there — the rats will keep coming back, or new ones will move in. The fastest way to stop rats is to deny them access to feed, remove hiding spots, and then trap or poison the ones already living there. Most people need to do all three at once to see results within two to three weeks.
The reason this matters: rats eat chicken feed, contaminate it with their droppings, and carry diseases that spread to your flock. They also kill chicks and steal eggs. A single female rat can have five to ten litters per year, so a small problem becomes a large one very quickly if you do not act.
Key Takeaways
- Store all chicken feed in metal containers with tight-fitting lids, never in bags or wooden boxes that rats can chew through.
- Remove spilled feed from the coop floor every evening and do not leave food out overnight.
- Seal cracks and gaps larger than one-quarter inch in the coop walls, floor, and roof with hardware cloth or steel mesh.
- Set snap traps or electronic traps inside the coop baited with peanut butter, and check them daily.
- Remove stacked wood, tall grass, and other shelter within ten feet of the coop, because rats nest there and travel to feed.
Store feed in rat-proof containers
Rats can chew through plastic, cardboard, and wood, so feed bags and wooden storage boxes will not stop them. Buy metal trash cans with locking lids or metal feed bins designed for livestock — these are sold at farm supply stores and online. A 30-gallon metal can with a locking lid costs between $30 and $60 and will last for years. Plastic containers with snap-down lids are cheaper but rats can gnaw through them over time, so metal is the safer choice if you have a serious infestation.
Keep the containers outside the coop if possible, in a locked shed or garage. If you must store feed inside the coop, place the containers on a raised platform at least two feet off the ground — rats are good climbers, but this makes it harder for them to access the feed while they are eating. Never leave feed bags sitting on the floor, even for a few hours. Scoop out only what you need for the day and seal the container when ready after.
Remove spilled feed and water every evening
Rats will eat the crumbs and spilled pellets left on the coop floor after your chickens finish eating. Sweep or rake the floor each evening before dark and dispose of the debris in a sealed trash can away from the coop. Do not compost it, because rats will dig into the compost pile. If you use a feeder that hangs from the ceiling, position it so spilled feed falls into a tray underneath — empty the tray every evening.
Water is just as important as food. Rats need to drink daily, so remove or cover any open water sources at night. If your chickens have a waterer that drips or leaks, fix it or replace it. Rats will also drink from puddles or wet bedding, so keep the coop floor as dry as possible. If bedding gets wet, replace it.
Seal gaps and cracks in the coop structure
Rats can squeeze through any opening larger than one-quarter inch — about the width of a pencil. Walk around the outside of your coop and look for gaps where the walls meet the floor, cracks in wooden boards, holes around pipes or vents, and spaces under doors. Mark each one with chalk or tape.
Use hardware cloth (a wire mesh with small openings) or steel mesh to seal these gaps. Hardware cloth is stronger than chicken wire and rats cannot chew through it. Cut pieces to size and nail or screw them over the openings, overlapping the edges by at least one inch. For gaps in wooden boards, you can also use steel wool stuffed into the crack and then sealed with caulk, but hardware cloth is more durable. Pay special attention to the floor — if your coop sits on the ground rather than on a raised foundation, bury hardware cloth at least six inches deep around the perimeter to stop rats from digging underneath.
Trap rats inside the coop
Once you have cut off their food supply and sealed the entry points, trap the rats that are already living there. Snap traps are the most effective and fastest — they kill when ready and are cheap (about $1 to $3 each). Bait them with peanut butter, which rats prefer over cheese or grain. Place traps along the walls where you have seen rat droppings or runways, and set at least five to ten traps if you have a moderate infestation.
Check traps every morning and evening. Wear gloves when handling dead rats and dispose of them in a sealed bag in the trash, or bury them at least three feet deep away from the coop. Reset traps when ready. You should see a sharp drop in rat activity within three to five days if you have sealed the food sources. If you catch nothing after a week, the rats may have already left because they have no food, or they may be entering from a gap you missed.
Electronic traps are faster and less messy than snap traps, but they cost $20 to $40 each. They deliver a high-voltage shock that kills the rat when ready. Bait them the same way and check them daily. Some people prefer electronic traps because they are less likely to injure a hand during setup or reset.
Remove shelter and nesting sites near the coop
Rats nest in tall grass, under stacked wood, in brush piles, and in dense vegetation. They travel from these shelters to your coop to feed. Cut grass and weeds within ten feet of the coop down to the ground. Remove any stacked firewood, pallets, or scrap materials. If you have a compost pile, move it at least 15 feet away and make sure it has a lid or is enclosed in hardware cloth.
Rats also nest inside sheds, under decks, and in other structures near the coop. If you have a shed next to the coop, seal the gaps in that building too. The goal is to make the entire area around the coop less attractive as a home, so rats move elsewhere to find shelter.
When to use poison and when to avoid it
Poison (rodenticide) works, but it has drawbacks. Rats often die in hidden spaces inside the coop or walls, creating a smell that can last for weeks. Poison also kills other animals — hawks, owls, and snakes that eat poisoned rats can die from the toxin. If you use poison, place it in a bait station — a locked box that only rats can enter — so your chickens and other animals cannot reach it.
Poison is most useful as a second step after you have sealed the food sources and trapped the visible rats. If you still see signs of rats after two weeks of trapping, then add poison in bait stations. Use a second-generation rodenticide (brodifacoum or difethialone) because it works faster than first-generation poisons. Check bait stations every two to three days and refill them as needed. Wear gloves and wash your hands after handling poison.
Frequently Asked Questions
How long does it take to get rid of rats completely?
If you seal the food sources and set traps, you should see a major drop in activity within two to three weeks. Complete elimination can take four to six weeks if the infestation is large. You will know the problem is solved when you stop catching rats in traps for at least two weeks and see no new droppings or runways.
Can I use poison if I have chickens in the coop?
Yes, but only in a locked bait station that rats can enter but chickens cannot. Place the station outside the coop or in a corner where chickens do not go. Never scatter poison on the floor or mix it into feed.
What if rats keep coming back after I trap them?
You have missed a food source or a gap in the coop. Check for spilled feed you are not cleaning up, water sources, or cracks you did not seal. Rats will keep returning as long as the coop offers food and shelter. Walk the perimeter again and look for any opening larger than one-quarter inch.
Do I need to call a pest control company?
Most rat problems in chicken coops can be solved with traps and sealed containers. Call a professional if you have sealed all gaps, removed all food sources, and set traps for four weeks with no improvement — this suggests a large infestation or entry points you cannot see.
Will my chickens get sick from eating rat poison?
Not if you use a locked bait station. Chickens cannot open the station, so they cannot eat the poison. Keep the station at least three feet away from feeders and waterers so chickens do not peck at it out of curiosity.