Rats in a chicken coop are a real problem — here's what works
Rats in a chicken coop eat feed, contaminate water, and can injure or kill chicks and young birds. The fastest way to stop them is to remove their food source first, then trap or poison the ones already there, then seal entry points so new ones cannot get in. Most people need to do all three at once — removing feed alone will not work if rats are already living in the coop, and trapping alone will not stop new rats from moving in through gaps in the structure.
The order matters because rats will stay as long as food is available. If you set traps before you find the feed, you may catch a few but others will remain. If you seal the coop before you trap the ones inside, you trap them with your chickens. Start with feed management, move to trapping, then finish with exclusion.
Key Takeaways
- Store chicken feed in metal containers with tight-fitting lids, not in bags or open bins, because rats can chew through plastic and cloth in hours.
- Remove uneaten feed from the coop each evening and do not leave water standing overnight, since rats need both to survive.
- Snap traps baited with peanut butter or dried fruit kill rats faster and more reliably than poison, which can take days and may kill birds that eat poisoned rats.
- Seal gaps larger than one-quarter inch with hardware cloth or steel mesh, not wood or plastic, because rats can chew through softer materials.
- Check traps daily and remove dead rats promptly to prevent disease and to know whether the problem is getting worse or better.
Store feed in metal containers, not bags or plastic bins
Rats can chew through plastic feed bins and cloth feed bags in a single night. A metal trash can with a tight-fitting lid or a metal feed bin stops them. The lid must close completely — a loose or propped-open lid defeats the purpose. If you use a metal can, make sure the lid sits flush against the rim with no gaps where a rat can wedge its teeth.
Do not store feed in the coop itself if you can avoid it. If you must, keep it in a separate locked box inside the coop, away from where the chickens roost. Rats are most active at night and will raid feed while your birds sleep. A metal container in a separate shed or garage is safer than anything inside the coop.
Check the container daily for damage. If you see teeth marks or small dents, the rats are testing it. Replace it before they break through. A single breach means rats have found your feed supply and will return every night.
Remove uneaten feed and standing water each evening
Rats need food and water to survive. Leaving feed in the coop overnight is an open invitation. After your chickens have finished eating, remove any remaining feed from feeders and the floor. Sweep up scattered grain. This takes ten minutes and cuts the rat population pressure dramatically because rats cannot sustain themselves without a reliable food source.
Standing water is equally important. Empty waterers or cover them at dusk. A rat can drink from a shallow dish or a leaky waterer all night. If you use an automatic waterer, check it for leaks — a slow drip is enough to keep rats alive. In hot weather when chickens need water overnight, use a covered waterer that rats cannot access, or refill it only in the morning.
This step alone will not eliminate rats already in the coop, but it will stop new ones from moving in and will weaken the ones that are there. Combine it with trapping for faster results.
Use snap traps or electronic traps, not poison
Snap traps kill rats in seconds and are safer around chickens than poison. Bait them with peanut butter, a small piece of dried fruit, or a bit of chocolate. Place traps along the walls where rats run — they follow edges rather than crossing open space. Set at least four traps if you have seen multiple rats. Check them every morning and evening.
Poison pellets or blocks take three to seven days to kill a rat, and a poisoned rat may die inside a wall or under the coop where you cannot reach it. The smell can last for weeks. Worse, if a chicken eats a poisoned rat or a poisoned pellet meant for rats, the chicken can die too. Snap traps avoid this risk entirely.
Electronic traps deliver a shock that kills when ready. They are more expensive than snap traps but work well in coops because they are enclosed and keep dead rats out of sight. Whichever type you choose, wear gloves when handling traps or dead rats, and wash your hands afterward. Rats carry bacteria that can make you sick.
Expect to catch rats for one to three weeks after you start. This means there were more in the coop than you realized. Keep trapping until you go three days without catching any.
Seal gaps and holes with hardware cloth or steel mesh
Rats can squeeze through any opening larger than one-quarter inch. Walk around the outside of the coop and look for gaps around doors, windows, vents, and where pipes or wires enter. Check the bottom of the coop where wood may have rotted or warped. Look under the roof line and around the foundation.
Use hardware cloth (a steel mesh with small holes) or steel mesh to seal these gaps. Do not use wood, plastic, or chicken wire — rats will chew through all three. Hardware cloth is stronger and lasts longer. Staple or nail it firmly so it does not pull loose. For large holes, cut a patch that extends at least two inches beyond the hole on all sides and find it with multiple fasteners.
Pay special attention to the gap between the coop and the ground. Rats often dig underneath rather than chew through. Bury hardware cloth at least six inches deep around the perimeter, or bend it outward at a right angle and bury it flat. This stops rats from tunneling in.
Do this work after you have trapped the rats inside, not before. If you seal the coop while rats are still living there, you trap them with your chickens.
Eliminate hiding spots and nesting material
Rats need places to hide and material to build nests. Remove stacks of wood, old equipment, or piles of straw stored near the coop. Keep grass and weeds trimmed short around the coop so rats cannot approach under cover. Store tools and supplies away from the coop rather than leaning them against it.
Inside the coop, use sand or shavings for bedding rather than straw, which rats shred for nesting material. Change bedding regularly and remove soiled material promptly. A clean coop with no clutter is less attractive to rats than a cluttered one.
If you have a compost pile, keep it away from the coop and cover it with a lid or hardware cloth. Rats will live in a compost pile and raid the coop at night. The same goes for fallen fruit or vegetable scraps — do not leave them near the coop.
Know the difference between rats and mice
Rats are larger than mice and cause more damage. An adult rat is four to five inches long, not counting the tail. Mice are one to three inches long. Rat droppings are the size of a grain of rice; mouse droppings are the size of a pinhead. Rat holes in feed bags or wood are dime-sized or larger; mouse holes are smaller.
The control methods are the same for both, but if you are catching only mice, you may have a different problem. Mice are harder to keep out because they fit through smaller gaps. If you have sealed the coop well and are still catching mice, look for gaps smaller than one-quarter inch or check whether mice are living in the bedding itself rather than entering from outside.
Frequently Asked Questions
Can I use poison if I am careful to keep it away from my chickens?
Poison is riskier than snap traps even with precautions. A chicken can find a poison pellet you missed, or eat a poisoned rat before you find it. Snap traps are faster, cleaner, and safer. If you do use poison, use it only in a locked box that chickens cannot access, and check it daily so you can remove dead rats before they decompose.
How long does it take to get rid of rats completely?
If you start with feed removal, trapping, and sealing all at once, you should see results in one to two weeks. It may take three to four weeks to stop catching rats entirely. If you only trap without removing feed or sealing gaps, the problem will return because new rats will move in. Do all three steps for lasting results.
What if I find a rat nest with babies in the coop?
Remove the nest and the babies. Do not leave them hoping the mother will move them — she will not, and they will grow into more rats. Wear gloves and dispose of the nest in a sealed bag. Continue trapping the adults. This is unpleasant but necessary to stop the population from growing.
Will my chickens get sick from living in a coop that had rats?
Rats leave bacteria in their droppings. Once you have removed the rats, clean the coop thoroughly with a disinfectant or a bleach solution (one part bleach to ten parts water), let it dry, and replace the bedding. Your chickens should be fine. Rats themselves do not usually attack healthy adult chickens, though they will kill chicks or very young birds.
Do I need to call a pest control company?
Most rat problems in chicken coops can be solved with feed management, traps, and sealing. Call a professional if you have sealed the coop, removed all food sources, trapped for three weeks, and are still catching rats. They have access to stronger poisons and can identify entry points you may have missed.