What humane wildlife control actually means

“Humane” gets printed on a lot of packaging. In wildlife control it should mean something simple: the animal leaves unhurt, and it cannot get back in. No poison, no glue, no snap traps, no drowning. Most of the work turns out to be timing and building work, not catching anything.

It is also the approach that tends to last. It takes a few steps in a set order, and there is a clear line between a deterrent that is established and one that is a gimmick.

Why “get rid of it” really means “make it leave”

Animals move in for a reason: food, shelter, or a safe place to raise young. Remove one animal and leave the reason in place, and the spot stays just as attractive to the next one. Humane control goes after the reason. Take away the food, let the animal leave, close the way in. The order matters.

Step one: take away the food

• Bins with tight lids, kept closed, and food waste in a sealed caddy.
• Pet food indoors, and bowls lifted at night.
• Bird feeders with a tray, so seed does not pile up underneath. If rats are visiting, take feeders in for a while. Helping hedgehogs without attracting rats shows how to feed wildlife without feeding the wrong guests.
• Fallen fruit picked up, compost kept to garden waste and raw peelings, and the barbecue cleaned after use.

None of this is exciting. It is also free, and it makes every other step work better.

Step two: let them leave, and mind the young

Timing is the part people get wrong. Close up a roof, a vent or a den while young are inside and they die there. The mother may also tear her way back in, sometimes through the inside of your home.

So before anything is sealed, find out whether there are young. Listen for high-pitched calling that carries on when the adult is away, and watch for an adult coming and going on a steady schedule. Breeding seasons differ by species and by country, and a local wildlife service or rescue group can tell you when it is safe to act. Our answers on animals in the roof and a fox den under the shed walk through what to look for.

Once the young are grown and gone, or there were none, a one-way exit does the rest. It is a door or flap fitted over the main entrance that lets the animal out to feed but not back in. This is a job for a licensed wildlife service. They know which type suits which animal, they check for young first, and where an animal is protected, doing it yourself may not be allowed.

Step three: close every way in

Only once the animal has gone. Check first: several quiet nights in a row, and loose material placed across the gap left undisturbed, are good signs.

Then close every gap, not just the main one, or they simply use the next. Use materials stronger than teeth and claws: galvanised welded mesh rather than chicken wire, fixed with screws rather than staples. Guards over vents, caps on chimneys, mesh around the base of sheds and decking. The sealing gaps guide covers the basics, and birds nesting in vents and mice that keep coming back show it for two common cases.

Deterrents: established or gimmick?

The deterrents with a track record are physical, or they change what the animal finds when it arrives:

• Barriers: netting and spikes on ledges for birds, mesh over gaps, fencing dug in at the base for diggers.
• Motion-activated sprinklers for garden visitors such as foxes and cats. A burst of water startles without harm. See foxes digging the lawn.
• Less cover and less access: branches cut back from the roof, log piles moved away from the house, long grass kept short near walls.

And the ones that sell well but do not do the job:

• Ultrasonic plugs and sound boxes. We do not recommend them for any animal. Here is why.
• Plastic owls and other decoys. They work for a night or two, until the animal learns they never move.
• Mothballs in the garden. They are not made for that, using them against their label is a misuse, and they do not keep snakes or anything else away. See snake repellents.
• Peppermint oil and other strong smells. Nice for you, not a barrier for them.

Gimmicks often seem to work at first because animals come and go anyway. If the visits stop the week you bought a gadget, the gadget gets the credit. When they come back, the gap is still open.

Live-catch traps and the law on release

Live-catch traps sound like the kind option, and sometimes they are. But the rules around them are strict and vary widely. Some animals may only be caught by licensed people. Some may only be released close to where they were caught. Some, often species counted as invasive, may not be released at all once caught. And moving an adult away in breeding season can leave young behind to starve.

A trapped animal also suffers quickly from heat, cold, thirst and fear, so any trap has to be checked often. For most households, the better route is a licensed wildlife service. If you are thinking of buying a trap, ask your council or wildlife authority first what you may catch, and what you may do with it afterwards.

Protected species and nests

In many countries, most wild birds and their nests in use are protected by law, even on your own house. Bats and their roosts are protected in many places too, and some mammals and reptiles have their own rules. That usually means waiting, not acting: let the young leave, then block the spot before next season. Can I remove a bird’s nest and gulls nesting on the roof cover the details.

We cannot give a ruling for your home, and neither can a forum. Your national or state wildlife agency, your council, a national wildlife charity or a licensed wildlife service can.

What humane rules out, and why

• Poison. A slow death, a risk to pets and to the animals that eat a poisoned one, and often a body inside a wall or roof you cannot reach. See rat poison with pets in the house.
• Glue traps. Animals caught on them suffer, and they catch whatever walks across them, from birds to pets. They are restricted or banned for public use in some countries. More in glue and bucket traps.
• Snap traps and anything built to injure. We do not recommend them.
• Drowning and bucket traps. Cruel, whatever they are called on the box.

None of these deal with the reason the animal came, so they rarely end the problem anyway. The gap is still there for the next one.

When to call a licensed service

• There may be young inside.
• The way in is high up, on a roof or under eaves.
• The animal may be protected, or you are not sure what it is.
• It is inside your living space, or it is injured. For an injured animal, call a wildlife rescue.

When you call, ask: do you use one-way exits, how do you check for young, what will you seal and with what, do you use poison or glue (the answer you want is no), are you licensed for this species, and is the repair guaranteed? The guides on garden visitors, birds and mice and rats have more for each animal.

Snakes and any animal that may bite: keep your distance, keep children and pets away, and call local animal control or a licensed catcher. Do not try to catch it, and do not assume it is harmless from how it looks. If anyone is bitten or scratched by a wild animal, wash the wound and see a doctor the same day. Our snakes guide and snake in the garden have more.