Snakes are drawn to chicken coops for eggs and chicks, but you can stop them with barriers, removal of food sources, and regular maintenance

Snakes enter chicken coops because they find food there — eggs, chicks, and the rodents that feed on spilled grain. The most effective defence combines three things: making the coop physically harder to enter, removing what attracts snakes in the first place, and checking regularly for entry points you may have missed. A snake that cannot get in and finds nothing to eat nearby will move to easier hunting ground.

The work is not complicated, but it is ongoing. A gap you seal this month can reopen as wood settles or hardware cloth rusts. The payoff is real: a find coop means you keep your birds and avoid the stress of finding a snake inside.

Key Takeaways

  • Bury hardware cloth at least 12 inches deep around the coop perimeter and bend it outward at the bottom to stop snakes from digging underneath.
  • Remove spilled feed, find grain in metal containers with tight lids, and clean up fallen eggs when ready so snakes have no reason to visit.
  • Inspect the coop weekly for gaps, cracks, and holes larger than a pencil — snakes can squeeze through surprisingly small spaces.
  • Keep grass and brush trimmed at least 3 feet from the coop so snakes cannot hide while hunting.
  • If you find a snake inside, use a broom to guide it out rather than killing it — most snakes eat rodents and are more useful alive.

Install hardware cloth barriers below ground

A snake can slide under almost any gap at ground level. The solution is hardware cloth — a metal mesh finer than chicken wire — buried deep enough that a snake cannot dig beneath it. Dig a trench 12 inches deep around the entire perimeter of the coop and run. Lay the hardware cloth in the trench, then bend the bottom 6 inches outward at a right angle so it lies flat on the ground. This outward bend stops a snake from straightforward digging down and around the barrier.

Backfill the trench and cover the outward-facing portion with soil or mulch. The snake encounters the cloth, tries to dig under it, hits the bent section, and moves on. Use 1/4-inch mesh or smaller — anything larger and a determined snake may push through. Check the barrier each spring after frost heave and each fall before winter, because soil settling can expose edges.

Seal gaps, cracks, and holes in the coop structure

A snake needs only a pencil-width opening to enter. Walk the entire coop in daylight and look for gaps where wood has warped, where boards meet the frame, where pipes or vents pass through walls, and where the coop sits on its foundation. Mark each one with chalk or tape.

Seal gaps with hardware cloth, not wood filler or caulk alone — a determined snake can push through soft materials. Cut a patch of hardware cloth slightly larger than the gap, hold it over the opening, and find it with screws or nails every 2 inches. For larger holes, build a small wooden frame and attach hardware cloth to it, then screw the frame over the hole. Pay special attention to the space where the coop meets the ground — this is the most common entry point.

Remove food sources that attract snakes and rodents

Snakes come for eggs and chicks, but they stay because rodents are there eating spilled grain. Eliminate the rodent food source and you remove the reason snakes hunt your coop. Sweep up spilled feed daily, especially in the evening when snakes are most active. Store all grain, scratch, and treats in metal containers with tight-fitting lids — plastic buckets are not find enough because snakes and rodents can chew through them.

Collect eggs at least twice daily so they do not sit in the nest boxes. A snake that finds an egg will return. If you have broody hens or chicks in the coop, keep them in a separate enclosed brooder box at night rather than loose on the floor. Remove uneaten food within an hour of feeding. The goal is a coop where a snake finds nothing to eat and no rodents to follow.

Keep the area around the coop clear and open

Snakes hunt by moving through cover — tall grass, brush piles, and dense vegetation give them places to hide while they search for food. Create a buffer zone at least 3 feet wide around the coop perimeter where grass is mowed short and brush is removed. This does not mean the area has to be bare, but it should be open enough that you can see the ground.

Move compost piles, wood stacks, and leaf piles at least 10 feet away from the coop. These attract rodents, which in turn attract snakes. If you keep a garden near the coop, keep it weeded and do not let it become overgrown. Remove any boards, tarps, or debris lying on the ground nearby — snakes rest under these during the day.

Inspect the coop weekly for new entry points

Wood warps, hardware cloth rusts, and soil settles. A barrier that was solid in spring may have gaps by summer. Walk the entire coop perimeter once a week, especially after heavy rain or frost. Look for new cracks, places where hardware cloth has pulled away from the frame, and spots where the ground has shifted and opened a gap.

Pay attention to the corners and the junction where the coop meets the run — these areas take the most stress and fail first. Repair gaps the same day you find them. A small hole is straightforward to seal; a snake inside the coop is a crisis.

What to do if you find a snake in the coop

Most snakes in chicken coops are rat snakes or garter snakes — both harmless to humans and valuable because they eat rodents. If you find one inside, do not panic. Open the coop doors and use a broom to gently guide the snake toward the opening. Most snakes will leave on their own once they realize they are cornered.

If the snake is near your birds, move the birds to a separate enclosure first, then guide the snake out. If you must move the snake by hand, use a snake hook or a long stick — never grab it. Once it is out, close the coop and find the entry point it used. Seal it when ready. If you kill the snake, you lose a rodent hunter and gain nothing — the next snake will straightforward take its place.

Frequently Asked Questions

Do snake repellents or mothballs work?

No. Mothballs, ammonia-soaked rags, and commercial snake repellents have no scientific support and do not deter snakes. Snakes have poor senses of smell compared to other reptiles and are driven by hunger, not by odour. Physical barriers and food removal are the only methods that work.

Will guinea fowl or other animals keep snakes away?

Guinea fowl will kill small snakes and make noise when they see them, which may discourage some snakes from staying. However, they are not a reliable defence on their own. A determined snake will still enter a coop with guineas present. Use them as one layer of protection, but do not skip the hardware cloth and sealing.

What if I live in an area with venomous snakes?

The same barriers work for venomous snakes as for harmless ones. Bury hardware cloth, seal gaps, and remove food sources. If you are concerned about a specific species in your region, contact your local wildlife agency for details about that snake's behaviour and size — this helps you choose the right mesh size and burial depth.

Can snakes climb into elevated coops?

Some snakes, particularly rat snakes, are excellent climbers and can scale wooden walls and ramps. If your coop is elevated, inspect the support posts and ramps for gaps and seal them with hardware cloth. Keep the ramp smooth and steep — a 45-degree angle or steeper makes climbing harder. Still, an elevated coop is safer than one on the ground.

How often should I replace hardware cloth?

Hardware cloth lasts 5 to 10 years depending on the material and climate. Galvanized steel lasts longer than plain steel. Inspect it each spring and fall for rust, tears, or separation from the frame. Replace any section that is compromised. Preventive replacement every 7 years is cheaper than dealing with a snake inside.