Predator-Proof Chicken Coop: Mesh, Latches and a Buried Apron

Wrap every opening in ½ in hardware cloth, bury it 12 in at the run edge and fit a latch that takes two motions to open. Then close the coop every night. That is the whole job. Where weasels or mink live nearby, use ¼ in mesh on the vents.

Most coops fail at one spot, not everywhere at once. A raccoon tests the latch. A fox tests the ground at the fence line. A hawk tests a loose corner of netting. Fix each spot once and the coop stays safe for years.

None of this needs special skill. A roll of hardware cloth, a box of screws with fender washers, a spade and two good latches cover most coops. The work takes a weekend, and it is the best weekend you will spend on the flock.

Kentucky Extension calls the red fox the most common predator of poultry. Raccoons, dogs, coyotes, weasels, snakes, hawks and owls follow. Each one gets in a different way, so the checklist below goes spot by spot.

Start at the top of the list. Chicken wire keeps hens in, but it is thin and twisted. Kentucky Extension notes that a raccoon will reach through the wire for a bird it cannot fully reach. Welded hardware cloth with ½ in openings stops the paw.

Next, look at every hole in the house. Vents, gaps at the eaves and the space above a door all count. Kentucky Extension says a least weasel can pass through a ¼ in hole, and a snake that fits through a gap of that size can reach chicks. Cover every opening with mesh.

Then check the doors. A hook-and-eye or a twist knob is easy for a raccoon to work open. A spring bolt needs a pull and a slide. A two-step latch needs a lift and a turn. Both are beyond a raccoon, and both are cheap.

Last, look under the house. A raised coop with an open floor frame is fine if the floor itself is solid. A ground-level coop with a dirt floor needs mesh under the floor or a buried apron all the way around, the same as the run.

If digging a trench is not practical, lay a flat apron instead. Spread mesh 12 in wide on the ground around the run and pin it down. Grass grows through it in a few weeks. A fox or dog digs at the wall, meets wire and gives up.

Penn State gives both depth figures: bury at least 12 in, and bend the bottom 6 in outward. Kentucky Extension gives the same 12 in for keeping out foxes, coyotes and rats.

Overlap matters more than people expect. A raccoon works at seams and corners with its hands. Screw the mesh every few inches along each frame member, and run a strip of wood over the edge. A stapled seam is the first place a determined animal pulls loose.

Use the same care at the run door. Hang it so it closes against a stop on all sides, with no gap at the bottom. Fit the latch on the outside and a second one on the inside if you ever close yourself in to work. A gap of a few inches under a run door is an open invitation.

Hawks and owls need a different plan from ground animals. A fence does nothing against them. Kentucky Extension suggests covering the run with netting and keeping it tight, since hawks find any loose spot. It notes that orange netting works well, because hawks and owls see orange clearly.

Hawks and owls are federally protected, so the only fixes are covers and shelter. Kentucky Extension also suggests removing perches within 100 yards of the flock, which gives a hawk fewer places to watch from.

Size the netting to the run plus 1 ft on each side, so you can fold it down and fix it to the frame. A 25 × 50 ft net covers a 20 × 40 ft run with room to spare. Pick a small mesh. Add a center post on a wide run. Rain and snow will not pool in the middle.

Raccoons are the cleverest of the ground group. Kentucky Extension notes that two raccoons may work together, one scaring hens to the fence while the other grabs. That is why the fix is mesh a paw cannot pass, not just a taller fence.

Weasels and mink are small. Plan for them anyway. Kentucky Extension describes the least weasel as only 6.5 to 8 in long. That is why the vent mesh drops to ¼ in where they live. Check under doors and at the corners of the floor for gaps of that size, too.

Snakes come for eggs and young chicks more than for grown hens. Kentucky Extension notes that a snake that fits through a gap of ¼ in or less can get in. Collect eggs every day, and close small gaps the same way you would for a weasel.

The nightly close is the habit that matters most. Kentucky Extension says to have the flock roost in a secured house at night with all doors closed and locked. Hens can be trained to go in at dusk by feeding or watering them inside at that hour.

An automatic door does the close for you on a timer or light sensor. It still pays to look in at dusk now and then. A hen that roosts in a tree misses the door.

Keep the area tidy, too. Kentucky Extension notes that garbage cans and feed left out draw raccoons, which then look for other food nearby. Store feed in a watertight, rodent-proof bin with a tight lid, and leave no feed in the run overnight.

Free-range time brings its own risks, because no coop can protect a hen in the open yard. Kentucky Extension suggests movable fencing to keep a ranging flock in one area. The fence may be electric or not.

If you use an electric fence, Kentucky Extension says the charge should stun, not kill. A stunned fox learns to stay away. A dead one is soon replaced by another fox. A stun-level fence is also safer for people and pets.

Range the flock in daylight and bring them in well before dusk. Kentucky Extension notes that coyotes hunt mostly at night and bobcats favor the 2 twilight hours of dawn and dusk. A shrub or a small shelter in the range area gives hens cover from hawks. A guard animal is another option Kentucky Extension lists, and your own presence in the yard helps, too.