Predator-Proofing: Hardware Cloth, Locks, and the Weak Points You Missed

Our main predator-proofing guide covers the basics: use hardware cloth instead of chicken wire, bury or skirt the run, cover the top and close the coop at night. This article is a different exercise. It is an audit. Almost nobody loses birds because they forgot hardware cloth entirely. They lose birds because of one thing that looked fine: a vent with staples instead of screws, a latch a raccoon could work out, a gap under a door. Here is a way to walk your coop the way a predator would.

The advice below draws on extension guidance and standard practice. Predators differ by region, so ask your local extension office or wildlife agency what you face. For poultry suppliers and events near you, agriculture.directory lists agriculture events by area.

What the Extension Checklist Says

Oregon State University Extension's backyard coop design publication gives a short list. Close the flock inside at night. Raise the coop at least a foot off the ground with a concrete slab or solid wood floor. Enclose the run in one-by-two-inch mesh and cover the top with netting or wire. Bury fencing six inches to a foot deep to deter diggers. Add a motion-detector light. Keep large plants away from the coop since they can hide predators, and place the coop near the house or other high-traffic areas.

That is a solid baseline. The audit below is about what lies between the lines of a list like that.

Weak Point One: Chicken Wire Anywhere

Chicken wire is built to keep chickens in. It is thin, and a determined raccoon can pull it apart, while smaller animals can squeeze through its openings. Replace it with welded hardware cloth on any opening a predator can reach, which is commonly a half-inch mesh for windows and vents and may be a larger welded mesh on run walls. Check the wire gauge and whether it is welded, not just woven. Where wire meets wood, use screws with washers rather than staples, which pop out under pressure.

Weak Point Two: Vents and Windows

Ventilation openings are the most common unprotected gap, because keepers rightly fear sealing the coop. The answer is to keep them open and cover them well. UNH Extension's advice on backyard chickens in winter says vents should be kept too small for predators. Cover every vent and window, including the high ones, since raccoons and some climbers get up there. Check eaves and the junction between the roof and walls for gaps. A weasel or rat needs only a small hole.

Weak Point Three: Latches

A simple slide bolt is easy for a raccoon to work. Use a two-step latch: a spring-loaded snap, a carabiner on a bolt, or a bolt with a clip. Test every door, including the nest box lid and the clean-out hatch, the ones keepers forget. Hinges should be tight and doors should fit flush, so nothing can get fingers or a nose into a gap. Push, pull and lift each panel yourself. If you can wiggle a door half an inch, an animal might do it too.

Weak Point Four: The Pop Door

The small door hens use is the main way in and out, and it is often the one left open by accident. If you cannot be home at dusk, an automatic door with a timer or light sensor is an option, but batteries die and mechanisms jam, so check it regularly and keep a manual routine as a backup. Count heads at lockup. Every night.

Weak Point Five: The Ground

Diggers, including foxes, dogs and rats, will find the lowest weak spot. Oregon State suggests burying fencing six inches to a foot deep. Another common approach is an apron of hardware cloth laid flat outward from the base of the run and covered with soil or stones, which stops animals digging straight down at the fence line. Walk the whole perimeter after rain, when disturbed soil and new burrows show up. Look for gaps under gates, where the ground dips.

Weak Point Six: The Roof of the Run

Open-top runs invite hawks and owls and let climbers drop in. Oregon State advises covering the top with netting or wire. Pay attention to the join between roof and walls, which is where raccoons and cats probe. Sag in a netted roof under snow is another failure point. A roof that collapses in winter lets everything in. For heavy Sussex hens that cannot flee at high speed, overhead cover also gives somewhere to duck.

Weak Point Seven: What You Leave Out

Feed attracts rodents, rodents attract snakes and larger predators. Store feed in sealed metal bins and pick up feeders at night. Collect eggs daily, and keep compost away from the coop. Clear brush and tall weeds that provide hiding places, a point Oregon State also makes about large plants near the coop.

Weak Point Eight: Your Own Routine

Hardware is only half of it. The other half is habit. The commonest cause of nighttime loss is forgetting to close up. Make it a fixed ritual tied to something else you do each evening. If you travel, arrange a reliable neighbor and write the steps down.

The Audit Checklist

1. Walk the exterior at dusk and again at midday. Look at every opening.
2. Press and tug on every wire panel, door and latch.
3. Check all vents, window openings and the roof line for gaps.
4. Trace the base of the run for digging and dips.
5. Inspect the run roof for sags, holes and loose joints.
6. Look for chewed edges, hair, droppings and tracks.
7. Review feed storage and egg collection.
8. Confirm your lock-up routine, including who does it when you are away.

If You Lose a Bird

Do not just replace the hen. Look for the entry point. Tracks in mud and trail camera footage can help identify the culprit, though signs are often ambiguous. Fix the gap before the next night. Predators that succeed once usually return. If problems persist, contact your state wildlife agency, since some predators are protected and rules about trapping vary.

Predator-proofing is not glamorous, but the payoff is concrete: hens alive in the morning. For a break, farm.fm has a humor piece about a ranch gate upgrade that leads nowhere, a useful reminder that a fancy entrance means little if the rest of the fence is weak.