HOW DO I KEEP FOXES OUT OF MY GARDEN AND SECURE MY PETS?

Content Updated: 2nd September 2012

Short Answer: Short of turning your garden into a militarized zone, it is almost impossible to stop foxes from gaining entry. Successful physical exclusion (i.e. fencing) of foxes will usually exclude other mammals (hedgehogs and badgers, for example) too. There are various repellents (chemical, physical and audible), which have been used with varying degrees of success, but none are guaranteed to work in every situation; some individual foxes are more sensitive or persistent than others. Ultimately, the best course of action is to find out what attracts the fox to your garden and remove or disguise the temptation.  If the fox raids your compost heap, for example, look at fencing it or investing in a compost bin. Similarly, if the fox is attracted to your garden by livestock or pets, you need to ensure that the animals are securely housed at night. Housing should include a secure frame, with sturdy wire (steel mesh, not chicken wire or plastic mesh) and either a secure floor or wire buried into the ground to prevent foxes digging into it – most important is that the door should contain secure locks, not simple twist catches. Small pets -- guinea pigs, rabbits, rats, mice etc. -- are most at risk from foxes if insecurely housed. There are occasional reports of foxes killing (typically, although not exclusively, young) cats and even small dogs and there have been anecdotal reports suggesting attacks on cats may be increasing but, despite recent media reports suggesting otherwise, there is no evidence that foxes represent a significant threat to either species. 

The Details: Foxes have a chequered relationship with humans and are the victim of so many stories and so much word-of-mouth that it has become difficult to separate fact from fiction – this is perhaps one reason why they polarize opinions to such a degree. Before we explore how we might go about securing our pets and making the garden a fox-free zone, it is worth taking a moment to look at why this might be necessary.

We share our environment with many species of plants, animals and microorganisms, each of which will exploit an opportunity if it arises. Exploitation may take the form of an antibiotic-resistant bacteria, a squirrel taking food put out for the birds, a ‘weed’ pushing its way up through your garden path, a seagull stealing your fish and chips on the beach, a bird tarnishing your newly cleaned car and so forth. There is a tendency for us to tolerate these exploitations to the point at which they begin to cause problems for us. In many of these cases the problem is exasperated by a temptation to ascribe motive to animal behaviour – to think that the bird spotted you cleaning your car and waited for you to finish before undoing some of your hard work. Rationally, of course, we know this isn’t true – it is an unfortunate (sometimes even ironic) coincidence. Foxes, it seems, tick all of these boxes for some people, perhaps because they have the potential to cause multiple problems. In order to separate the fact from fable, there are certain ‘home truths’ and myths that need to be faced. Yes, foxes will take small pets (guinea pigs, rats, rabbits, etc.) and small livestock (chicken, ducks, etc.) if the opportunity presents itself. Yes, foxes are capable of killing cats and small dogs. Yes, foxes will scavenge from bins if the opportunity presents itself. Yes, foxes will dig in flowerbeds, steal shoes and scent mark in a garden if the opportunity presents itself.

In a recent Internet debate -- following the attack on nine-month-old twins Lola and Isabella Koupparis in Hackney, London on the evening of 5th June 2010 -- I read one post saying that foxes should be culled because they will break into a chicken coop, kill one chicken to eat and then kill the remainder “out of sheer spite”. This brings us on to the myths. No, foxes will not kill your chickens out of spite, or because of some perverse ‘bloodlust’. Despite the repercussions, both financial and emotional, associated with the loss of a family pet or livestock to a fox (or any predator), it is important to reconcile that it did not happen because the animal had a personal grudge against you. Foxes are wild predators; they do what they do without concern or consideration for the feelings of the prey or its owner. The same applies to damage from digging in gardens, chewing/stealing of shoes and other problems they may cause during their nightly activities. In short, foxes are not evil – they hunt to feed themselves and their families and are a slave to their instincts (reasons for the phenomenon of surplus killing, where foxes kill more than they apparently need, are discussed in a separate Q/A). Ascribing human moral or ethical codes to a wild predator that is privy to none of the same influences is counterproductive. That is not to say that foxes aren’t sentient beings (that’s a whole different argument), just that foxes cannot be expected to understand or abide by our societal laws any more than we can theirs.

Once predation and damage have been considered, perhaps the next most common reason for people disliking foxes is that they consider them, and I quote from a recent Internet blog, “disease-ridden vermin”. At the risk of going further off-topic I will not discuss this in detail here, but suffice to say -- to the exclusion of mange, which is still fairly prevalent in many urban areas of Britain -- our foxes are pretty healthy, being rabies-free and with low parasite burdens (especially when compared with those on the Continent); according to DEFRA, incidentally, foxes aren’t technically vermin either. Thus, foxes aren’t evil, nor are they disease-ridden or verminous. Nonetheless, this doesn’t mean that they cannot impose inconvenience or annoyance on people and there will invariably be cases where people wish to keep foxes off their property. So, if foxes are causing problems for you or your pets, is there something you can do about it? Well, I have heard it said that foxes have endless patience and this means it's impossible to keep them away from your pets/livestock. They are certainly patient, even resourceful, but it is possible to take steps to secure your animals and make your garden less appealing to foxes.

In Britain's fox population, and especially those residing in urban areas, mange can be a significant disease, causing widespread mortality. Mange is, however, readily treatable and -- if caught early enough -- the fox can make a full recovery, as demonstrated by the vixen in the photo above.

Necessity knows no law
The first point to cover is the legality of fox control. There are no specific laws that prevent the killing of foxes. There are, however, sections of existing Acts that regulate how any control should be carried out and what materials can be used. Several general Acts, including the Protection of Animals Act of 1911 and The Wild Mammal (Protection) Act of 1996, make it illegal to cause ‘unnecessary suffering’ to an animal. I won’t go into the details of each act here (follow the links for full details) but, suffice to say, in the UK it is currently illegal to gas or poison foxes. It is also illegal to trap foxes in all but free running snares, and there are multiple conditions associated with their use (especially that they must be checked at least every 24 hours); it seems unlikely that these conditions could be met in urban areas. The main problem with snares is that it is impossible to exclude non-target species, as data from a MAFF trial conducted in 1968 showed – the snares caught 155 foxes and 132 non-target animals; non-target species include domestic pets, wildcats, badgers, otters, hare, birds and deer.

In his 1980 book The Red Fox, H. Gwyn Lloyd told how some farmers have recommended the spraying of chemicals -- such as turpentine, diesel, creosote and paraffin -- to repel foxes but there is little evidence of their efficiency and, these days, their use is illegal, resulting in a fine if caught. If you wish to use chemical repellents, they must be certified. Repellents currently certified for use as fox deterrents include Scoot, Get Off My Garden and Wash and Get Off. Some older texts describe the use of a tar-like repellent, similar to the wood preservative creosote, called Renardine (known colloquially as ‘fox oil’) that was introduced in 1896 and used for the exclusion of foxes, cats, moles and even badgers until it was banned by MAFF relatively recently. In March 2003, MAFF banned the sale, stocking and advertisement of Renardine; in order to permit the ‘using up’ of stocks that had already been purchased some leeway was permitted, but as of 30th June 2005, it has been illegal to buy or use Renardine.

Gone shootin’
Lethal control (namely hiring a pest control expert to remove the fox) is one potential solution to the problem of fox disturbance. Some individual foxes seem more interested in pets/livestock and more persistent than others and there is no doubt that trapping can be beneficial in the removal of such ‘problem individuals’. Those opposed to lethal control have, on occasion, requested that the fox be caught and released somewhere else – somewhere else often takes the form of ‘back into the countryside where it belongs’. Contrary to popular misconception, however, it is not practical to trap a fox in your garden and release it into another part of the area, let alone into a rural location. Foxes are territorial mammals and there is a large source population – in other words, if you trap and relocate one, you’re likely to be releasing it into another fox’s territory and, even if they manage to avoid confrontation with the owner, the released animal may return to its home patch to find it has been taken over by another fox. Consequently, the Abandonment of Animals Act (1960), which makes it illegal to leave an animal in a situation where it is unlikely to survive, arguably makes it illegal to relocate foxes. Ultimately, any fox trapped will almost invariably need to be dispatched by the pest controller and to ensure it is done humanely and professionally it is always advisable to hire a licensed operator (speak to the British Pest Control Association if you are unsure - see links at the end of this article). The use of firearms of sufficient calibre to kill a fox (an air-rifle is insufficient) is strictly regulated -- especially in urban areas -- and it is highly inadvisable to attempt control yourself. In rural locations, shooting with a medium-calibre weapon and the use of a ‘long dog’ to ensure any wounded animals do not escape can be efficient in reducing local predation of livestock or protecting colonies of breeding birds.

Before leaving the subject of lethal control, it is worth pointing out that removing a fox (or several foxes) from your garden will not ‘help keep the local fox population down’ (see Q/A); any fox killed is likely to be replaced within a couple of weeks. Finally, it is the householder’s responsibility to arrange for removal or control of foxes – as mentioned, foxes aren’t actually considered vermin and, as such, local councils are not obliged to provide a control service for them. Costs will vary according to location and the company you employ, but an impromptu vox populi of some of my local pest control companies suggests an average figure of between £100 and £150 for the removal of a fox.

Get off my land
Foxes are medium-sized carnivores that are reasonably proficient diggers and are perfectly capable of scaling a two metre (6 ft) fence from a standing start; larger fences can be cleared with ease if handy props (bins, for example) are nearby to provide a boost. Consequently, keeping foxes out of your garden altogether is not a simple or straightforward task -- it is equivalent to attempting the physical exclusion of a cat -- and it is important to understand this from the outset. Indeed, as Trevor Williams and Andrew Wilson write in their 2000 Unearthing the Urban Fox booklet:

“Let us state categorically that nothing you can do, short of building a fortress, will create a permanently fox free zone”

Bristol University biologists Stephen Harris and Phil Baker concur in their 2001 book Urban Foxes, pointing out that it is “virtually impossible to stop foxes getting in at all”. The fact, however, that you may not be able to totally exclude foxes from your garden, does not mean that you cannot make your garden less appealing to them which, at the very least, should reduce the time they spend there. The methods at your disposal can be broadly divided into four groups: chemical repellents; acoustic or other motion-activated devices; electric fences or netting; and those that I shall call ‘home remedies’.

The latter category includes some slightly ‘off the wall’ suggestions and I don’t want to devote much time to them, not least because few show any real promise, but there is one method that warrants further consideration – the process of putting unpleasant-tasting food out for the foxes. I have read several accounts of people who have put chicken pieces covered in very spicy marinade (Tabasco, chilli, etc.) in front of their coop and have found that the fox has taken one and never come back. The linking of an unpleasant taste or response to a specific action is called taste aversion and has recently been trialed in Australia, where foxes are significant predators of local wildlife. The basic premise is that a fox eats the carcass of, say a gamebird, that has been laced with an emetic (vomit-inducing chemical) and is then sick – the fox learns to associate eating that bird with the unpleasant experience of being sick and avoids eating that species in future. This is not a new idea -- if you think about it, many species employ a similar tactic (i.e. looking toxic) in a bid to prevent ending up on someone’s menu -- but it can be very effective when instigated correctly. I would be very interested to hear from anyone who’s had success with such a technique. Let us now move on to consider the other three groups.

Chemical Repellents
Despite H. Gwyn Lloyd’s opinion, given in The Red Fox, that proprietary brands of repellents “are of dubious efficacy”, more recent authors recommend them as a means of keeping foxes away. That which follows is a summary and the reader is directed to the excellent booklet Unearthing the Urban Fox by The Fox Project’s director Trevor Williams and former fox researcher Andy Wilson for detailed coverage of all fox repellent options.

Earths Under Sheds: Trevor Williams and Andy Wilson point out that, in London, some 75% of fox earths are located under garden sheds, with other favourite places being in bramble patches, under building foundations or in disused buildings. They also note that an adult fox can easily get through a hole 12cm (5 in.) in diameter, meaning that care is needed to block even innocuous holes to prevent entry. In their Urban Foxes book, Stephen Harris and Phil Baker explain that the best way to remove a fox from under your shed or building is to soak straw or rags in a deterrent and loosely block any entrance and exit holes; the fox will invariably remove the obstruction, but simply replace it and keep doing so. When the blockage has not been removed for two days, you can be sure the foxes have moved out and you can seal the hole permanently with stones, bricks, slabs or wire. It is important not to seal the hole before this because you might entomb the foxes, which would likely cause them to asphyxiate or starve to death – this is not only illegal under the Wild Mammals (Protection) Act, but it would also leave the bodies to decompose in situ. Blocking of the hole should be done quickly; a disused earth can be reoccupied within a fortnight if left accessible. Foxes give birth during the spring and a vixen will start looking for a natal (cubbing) earth well in advance, so it is important any holes are blocked by the end of January at the latest.

Lawn Fouling and Digging: It is important to remember that foxes are highly seasonal animals and the fact that you have foxes in your garden now doesn’t mean they will be there in a few months, so the disturbance isn’t necessarily permanent. Indeed, much disturbance tends to be confined to the summer months because it is caused by the cubs, which will be independent by the end of their first year, playing. Being territorial, foxes use scat to mark their territory and objects within it – as a consequence, scat is often deposited on, or close to, conspicuous objects (on shoes, flower pots, stones etc.) where it is likely to gain most attention. Removal of the scat only leads to its replacement, usually the following night, and so the problem must be treated. It is suggested that you soak a small amount of sand or sawdust in a repellent and place it next to the scat or, if using a spray applicator, apply directly to the scat.

Battle of the Scats: The Fox Project points out that at many of the fox deterrence calls they attend, they find the scat of cats (top) or geese (middle), rather than fox (bottom).

Trevor Williams and Andy Wilson note that foxes are able to smell food -- and unfortunately, this can include deceased pets -- buried up to 45cm (18 in.) below ground and often dig shallow holes, or scrapes, while searching for invertebrate prey. As with fouling, the authors recommend soaking a small amount of sand and placing it into the scrape or spraying it onto the ground (depending on the applicator). If there are children in the garden, you can purchase specialist disinfectants (PX Parvo, for example - see Fox Solutions in links below) for use on areas of fox fouling. If the digging is in flowerbeds, repellent-soaked sand (or repellent granules) can be sprinkled directly onto the affected area. Repellents can be applied to any entrance and exit holes in the garden and to ‘take-off’ or ‘landing’ sites, if the fox scales a fence or wall to get in. It is also possible to purchase “prickle” and “brickle” strips that line the tops of fences and walls (respectively) to deter animals climbing over them.

So, how do chemical repellents work? Much fox communication is achieved with scent, which is applied (in the form of a potently odiferous liquid) to faeces from paired anal sacs lying either side of the anus. Most chemical repellents contain either the strong-smelling salt aluminium ammonium sulphate, or the citronella-scented carbonyl methyl nonyl ketone; both aim to over-power the animal’s own scent, introducing confusing smells that appear to have an unnerving effect on the fox. It is worth pointing out at this point that studies by Andy Wilson found that chemical deterrents are less effective during late summer, because the cubs are less territorially-aware than their parents and concomitantly less bothered by the scent of repellents. Mr Wilson also found that repellents are usually ineffective at preventing losses of livestock -- presumably because the sight of prey overrides the smell of the repellent -- and that subordinate and itinerant (no fixed territory) foxes behave differently to dominant animals, which can influence their response to repellents. Overall, however, The Fox Project have found chemical repellents to be a useful method of deterrence and, in their book, Trevor Williams and Andy Wilson note that consistent and appropriate use of repellents usually stops the dominant animals using the garden, but keeps them in the area (i.e. just shifts their habitat use), which is important because if they stay in the territory they prevent new animals from moving in.

Chemical repellents may take the form of other strong-smelling compounds. Some companies sell predator (especially lion) dung, which they claim can be applied to a garden to deter various predators, including foxes althoug there are no studies, of which I am aware, to testify to their effectiveness. Some people have recommended a free chemical repellent, which apparently works well to exclude badgers and foxes: male urine. Apparently, applying the urine to the sites of disturbance (or at entry and exit locations) can deter the animals from entering the garden (like we might avoid using the stairwell of the local multi-storey carpark, presumably!). Predator odours are well-known to deter prey animals (fox urine will, for example, deter rabbits, while coyote urine is widely sold as a deer repellent), although they tend to be less successful at deterring other predators. I have read testimonies suggesting human male urine is very effective, while others have commented on how it made no difference. Again, this presumably reflects the individual response of foxes to repellents.

Acoustic, Optical and Motion-sensitive Repellents: As with chemical repellents, many of these devices work by exploiting a fox's senses or behaviour and their success is equally subject to variations in individual fox determination. In his 2002 book Living with Urban Wildlife, former pest control officer John Bryant recommends a device called a Scarecrow for fox deterrence. The Scarecrow is a water-jet triggered by an infrared sensor, sensitive to objects up to 11m (35ft) away – when triggered by the movement of an animal it fires a three second jet of cold water from its sprinkler head. Mr Bryant explains that he has “found that it has deterred foxes that have defied all other repellents”, but points out that it can be triggered by any movement, including cats, dogs and plants swaying in the breeze. Other devices that rely on physically scaring the fox out of the garden include the use of reflective or light-emitting objects. One such product, called Nite Eyes, consists of a series of flashing red LED lights and is reputed to deter a wide range of species, from owls to bears and cougars; on the product website the manufacturers go so far as to suggest that if the Koupparis family had owned one it could have prevented the attack on their twins. The solar-powered device works by trying to fool the predator into thinking it’s being watched – the manufacturers note that “The sense of being watched is the greatest fear night animals have”. I must confess that I have my reservations about this. Certainly, I can honestly say that none of the foxes I have watched (even when they’ve spotted me) have ever appeared frightened by my gawking, provided I kept my distance. There are also some conflicting statements on the manufacturer’s website, although I have read some reviews suggesting the device can be very effective.

Perhaps the most common type of non-chemical repellent devices are acoustic. Several companies produce ultrasonic (i.e. too high to be heard by the human ear) deterrents, with the general idea being that they emit an ultrasonic sinus or siren-like sound -- which foxes find unpleasant -- every two seconds-or-so for a pre-set period after the device is activated (usually by movement or body heat triggering a passive infrared sensor). Many general purpose units have a broad frequency range (from about 8 to 40 kHz), which can be set according to the animal(s) (e.g. foxes, cats, rats etc.) you're trying to repel – those designed specifically to repel cats and dogs tend to operate at around 22 kHz, while those for rodents broadcast between 30 and 70 kHz.  The units are usually battery operated, with a sensor range of around 12m (40ft) and an effective distance of (i.e. excludes animals from an area of) about 18m (60ft).

One widely sold ultrasonic device, aimed specifically at deterring foxes, is the FOXWatch unit produced by Concept Research in the UK. The product website makes some impressive claims, including that “Following the largest study of its kind ever undertaken in the UK, FOXWatch is now the only fox deterrent, scientifically tested and recommended”. Unfortunately, at the time of writing, my requests for details of the research -- i.e. scientific paper citations, report details, collaborative organisations etc. -- have gone unfulfilled by Concept Research, so I cannot comment on the science, but I have drawn a blank with a search of the scientific literature – indeed, there appear to have been very few studies published on the hearing responses of foxes at all, let alone in the context of repellent development. Concept Research did have their ultrasonic cat repellent (Catwatch) tested by a team of RSPB biologists, led by Sarah Nelson, and the results were published in a paper to the journal Applied Animal Behaviour Science in 2006. The data show that the device had a “moderate deterrent effect”, reducing both the likelihood that a cat would come into the garden and the time the cat would spend there if it did venture in – active devices were about 4% more effective than disabled ones during the first nine weeks of the study and, between the tenth and eighteenth week of the trial, active devices reduced the probability of a cat visit by about 30%. As with most of the repellents discussed here, I have read mixed reviews of FOXWatch’s effectiveness, but would love to hear from readers who have found it effective.

Overall, the studies that have been conducted with ultrasonic repellents have been mixed. In their Unearthing the Urban Fox book, Trevor Williams and Andy Wilson write that their own trials showed success rates of up to 80%, although they do not provide the details and Andy’s dissertation (conducted while he was a student at Greenwich University) wasn’t published – Mr Williams did tell me, however, that some of the companies weren’t happy with the findings of some of their tests. The Oxford Croquet club experienced problems with foxes digging and fouling their green and tried several repellents and, on their website, they conclude:

“During experiments carried out in association with Greenwich University, we found ultrasonic devices broadly ineffective, but found a water driven gadget, called "Scarecrow", very effective.”

Electric Fencing or Netting: By far the most effective method of predator exclusion involves the use of electric fencing and the technique has been widely used to protect nesting bird colonies from the attentions of foxes. In February 1974, for example, a trial electric fence was erected along a leading edge of the nesting Sandwich tern (Sterna sandvicensis - picture below) colony on the Sands of Forvie National Nature Reserve in Aberdeen (Scotland). Even though foxes were able to get around the fence at either end, Ian Patterson at the University of Aberdeen found that it was still an effective deterrent and reduced fox visits to the general area by over two-thirds. Using tracks in the sand Patterson demonstrated that the fence turned back 60% of the foxes that approached it and reduced fox activity beyond the fence to about 16% of that before the fence was erected (so overall predation reduced by 84%) – foxes crossed the fence in only 6% of visits.

A similar study, this time at a Least tern (Sterna albifrons) colony on the Cape Cod National Seashore in Massachusetts (USA) during the summer of 1978, found that, while new nests established outside of the fence were depredated by foxes, none of the foxes approached closer than three metres (10ft) to the fences, resulting in a substantial increase in the number of nests within the fenced area. In this case, even when the fence was turned off for a week, it still deterred the foxes. In his summary of the data, published in the Journal of Mammalogy during 1980, Dennis Minsky concluded that:

“…there would have been virtually no production without the fence.”

In a brief paper to the journal Mammal Review during 2002, Central Science Laboratory (CSL) biologists David Poole and Ian McKillop reviewed the effectiveness of electric netting and electric strained-wire at excluding foxes. The researchers set up the two types of fences in the enclosures of captive foxes and monitored how readily the animals crossed the barrier. Poole and McKillop found that only one of their foxes refused to cross the un-electrified fence and netting (foxes can sometimes be fearful of novel items in their territory, this is called neophobia), with six out of the seven animals crossing it multiple times. In the case of the netting, foxes pushed underneath it, pulled it down or chewed a hole in it; in the strained-wire trials, the animals either pushed underneath the fence, or jumped through the upper wires where the gap was wider. None of the foxes crossed the electrified netting or fences, except during the daily maintenance checks, when the fright associated with an attendant in their enclosure was sufficient to cause them to ignore the risk and jump over. Curiously, even though the fence was easily low enough for the fox to jump, they were only seen to do so when an attendant entered the enclosure – this suggests that, if the motivation is sufficient, most barriers can be overcome.

The behavioural observations from the CSL experiments showed that, even though the fences prevented the foxes from crossing in most cases, the animals investigated them regularly and even after receiving a shock only stayed away for about an hour. The foxes investigated the fences with their nose (a highly innervated and sensitive part of their body) and most foxes were only shocked once; one was shocked twice, but none took more than two shocks to get the message.

The downside to electric fences is that they can be expensive to erect and maintain (although electric netting is cheaper than strained-wire) and some animals can be very vulnerable to them. In his 1994 book, The Complete Fox, Les Stocker points out that the wire of electric fences should be placed at least 15cm (6 in.) above the ground to avoid the risk of hedgehogs coming in contact with them – it appears that while most animals move away after receiving a shock, hedgehogs curl up and get shock after shock until they die of exhaustion, heart failure or starvation. Nonetheless, I know several people who use electric fences to successfully exclude foxes from their property. Arguably, electric fencing is only cost-effective for large areas, but it can be included in the design of animal housing (especially chicken coops) to add additional fox-proofing. See the diagrams below for some of the most popular configurations of electric fencing. An electrified fence is basically an open circuit – when the animal touches the fence, it provides a pathway from the fence to the earth through which electrons can move and thereby closes the circuit. For an excellent description of how these fences operate, see here.

Rules of Attraction
Generally-speaking, all deterrents should be used in conjunction with some common sense actions to remove or disguise whatever it is that attracts the fox to your garden. Foxes are attracted to garden ponds to drink (solution: perhaps consider putting netting over them at night), to bird tables where food has been left out (solution: clear away any leftover food), to compost heaps searching for insects and rodents (solution: consider fencing the heap, or using a compost bin), to lawns looking for insects (solution: if you use a lawn fertilizer and it contains fishmeal or bonemeal, consider swapping it for one that doesn’t, or apply a repellent) and to gardens with trees looking for windfall fruit or berries (solution: gather windfall and store it away). If shoes are being stolen from the garden, tidy them away – the same applies to any litter that may be an attraction.

It is often said that urban foxes thrive on our waste and are seen in gardens more often now (and are bolder) because, with the recent introduction of 'fox-proof' wheelie bins by many councils, they're starving. I have said this before on the site, and I will reiterate it here: yes, foxes to take advantage of our wasteful society, but foxes do not depend on bin scavenge. The biologists at Bristol University are quick to point out that foxes scavenge from bins far less than people tend to assume; foxes are often labelled as the culprits when householders awake to find their bin bags have been ripped open, but foxes are far from the only animals that will do this (cats, dogs, rats, mice, badger and ground-feeding birds, especially corvids, will all break into rubbish sacks). One could even argue that there is little need for foxes to scavenge from bins, given that so much food is deliberately provided by householders. Indeed, if your neighbours feed the local foxes, it is worth asking if they could reduce the amount of food they put out. Studies by Bristol University have shown that most people put out far more food than is necessary (in my experience, a couple of handfuls of biscuits sprinkled around the garden will keep the fox occupied long enough to get a decent view and probably some photos) and if less is put out the foxes need to travel further to get their nightly fill – if they must travel further, they have less time to relax in your garden and are also less likely to foul there.

Popular Electric Fence Arrangements - these typically consist of using the electric fence to discourage foxes from digging beneath a sturdy unelectrified fence. An alternative to either of the above would be to remove the electric wire and substitute the unelectrified fence with electrified netting. Clipart fox from Free Clipart Now. (Illustrations not to scale)

There is no doubt that one substantial attraction for foxes is livestock and they have a bad reputation for killing small pets and fowl. The kill itself, however, is seldom witnessed and thus assumptions are often made. In criminal law, we have a clause called the Presumption of Innocence, which is known more colloquially as being ‘innocent until proven guilty’. I discuss the cases of fox attacks on cats in a separate Q/A, but similar assumptions are made for foxes killing livestock. Recently, some friends of my parents in a rural area of Cornwall came home to find all the chickens in their coop had been killed – in this case, however, the culprit was not a fox but a neighbour’s Jack Russell found in the henhouse among the bodies. I wonder whether the owners would have arrived at the same perpetrator had the dog got back out and gone home, or whether a fox would have been blamed? Obviously, foxes are responsible for a good many hen house raids, but the point is that they are not the only animals that can cause such mayhem. Badgers, stoats and weasels can cause similar damage as can (as we have seen) dogs; several farmers I know rank rats above foxes when considering predators of chickens, especially chicks. Most predators, wild or domestic, will engage in surplus killing (where they kill all the birds in the coop) when confronted with the scenario of abundant, agitated prey that cannot escape. Many people assume that the birds are killed and the predator takes what it wants, leaving the rest to rot. Fortunately, in recent years, several people who suffered losses at the jaws of foxes have left the chickens where they were killed and waited – sure enough, over successive nights, a fox has returned until every carcass had been removed. Most recently, just such a case was recounted by Martin Hughes-Games during an episode of the BBC’s Spring Watch. A similar situation may be true for garden damage and, in their book, Trevor Williams and Andy Wilson mention that many of the fox deterrence calls they attend turn out to be caused by cats, dogs or geese.

Ponds can be an important source of freshwater for animals and can attract foxes to your garden. Using a repellent in the pond isn't possible, so perhaps consider placing some netting over it at night or, if practical, fencing it off. Similarly, compost heaps can be fenced or replaced with plastic compost bins (above, right).

Nonetheless, if one of the main attractions in your garden is other animals, whether that be small pets (e.g. rabbits, guinea pigs, rats etc.) or livestock (e.g. chickens and ducks), then the attraction must be put out of reach of the fox – the easiest way to do this is to ensure they are locked away in a secure coop/run at night. Predations can happen during the daytime, but are relatively rare.

Securing Pets and Livestock
Ducks, geese, chickens, rabbits and guinea pigs should be put away at night in secure hutches or cages. When thinking about what constitutes a “secure” compound, it is exceedingly important not to underestimate how resourceful and persistent foxes can be. Hutches with simple twist closures are insufficient to prevent a fox gaining access, each door must have at least one -- ideally two, one at the top and one at the bottom -- bolts that latch in place. Pets should be shut away at twilight – most fowl will begin to settle down for the night at twilight, and my experience suggests that it takes only a couple of days of being ushered into a hutch for the night for them to realize this is where they should sleep (although I know chickens sometimes rebel!).

Small pets, such as rabbits (above, left) and guinea pigs (above, right), can be at risk from foxes, but the danger can be mitigated if the animals are securely housed.

Securing a flock of chickens for the night is more involved than securing a pet rabbit or duck. In their book Ducks and Geese at Home, Michael and Victoria Roberts present three practical alternatives to sitting outside the chicken coop all night with a shotgun. The first -- and most elaborate -- method involves building a two metre (6 ft) high wire fence around the chickens, with electric wires running around the perimeter of the fence at the top and bottom. The second method involves a two metre (6 ft) fence with an overhang at the top, slanted out at about 45-degrees and wire at the base of the fence running out to about 60cm (2 ft). The third method is the same as the second, but with a one metre (just over 3 ft) plateau at the top to stop the fox climbing up and over the fence. It seems that the most important factor to remember is that foxes will dig as well as climb, and so netting should be dug into the ground or laid flat on the ground around the fence in order to prevent the fox from digging its way under. Ideally, the wire mesh should be buried 30cm (12 in.) into the ground, or a secure floor (wooden, metal, paving slabs, etc.) included in the design. In some cases, placing paving slabs around the outside of the enclosure is sufficient to prevent the fox digging under the fence. See the diagrams below for some common examples of fox-proof coop designs.

It is important to ensure your hutch is secure. Most are sold with simple twist catches, but they can be easily (and cheaply) secured by the addition of some small latching bolts at the top and bottom of each door. The example above housed our pet ducks and, despite having the twist catches and roof chewed by a fox on the first night, it was never broken into.

Perhaps the most important point to remember when constructing (or purchasing) a house for your livestock is that chicken wire is not sufficiently strong to keep a fox out and foxes can easily bite through it - it was designed to keep chickens in, not to keep predators out. Fences should be composed of steel wire.

When choosing netting and un-electrified fencing, it is important to remember that an adult fox can easily make it through a hole 12cm (5 in.) in diameter, meaning that stock fencing is no barrier at all (above, left). They can also chew through chicken wire, so a strong steel wire -- such as the 3cm (1 in.) diameter mesh shown above (right) -- is required.

Cats can be vulnerable to fox predation, and there have been suggestions that cases have increased in recent years. I appreciate that statistics offer no comfort to someone who has lost their cat, but incidents are still generally considered rare and there are no clear data suggesting how significant the risk is (see Q/A). It is obviously not possible to lock your cat away in a hutch at night, but keeping it in at night will reduce the likelihood of it encountering a fox; it may also benefit the local bird and small mammal populations.

Fox-proof fencing: The above schematic shows probably the most popular construction for non-electrified fences to keep foxes and poultry apart. An alternative is to bury the wire at a 45-degree angle, rather than at the 90-degree angle shown above. The 'secret' to a fox-proof fence is ensuring the fox cannot jump over, or dig under, it. (Illustration not to scale).

Ultimately, I think it is fair to say that foxes can cause problems for people, although one wonders how much is actually fox-mediated and how much is assumed to be foxes (or, perhaps, vice versa). In order to resolve the problem, we need to employ a common sense approach. Remove or disguise, as far as possible, the temptation that draws foxes in and, where this isn’t possible, repellents and fencing can be extremely successful in ameliorating the problem. Remember, foxes are individuals and will vary in their response to repellents; there are many different deterrents available, so if one doesn’t work, try something else – don’t give up, persevere. If you need step-by-step advice on building fox-proof enclosures, or on any aspect of fox deterrence, The Fox Project operates a deterrence helpline on 01892 826222.

Fox Deterrent Links:
British Pest Control Association - The body representing the Pest Control industry
The Fox Project Deterrent Helpline - Free advice on the application of repellents and pet security
Fox Solutions - Advice and online shop for fox deterrents and repellents
FoxWatch Ultrasonic Deterrent
Nite Eyes Predator Deterrent
Agrisellex Electric Fencing - Information on, and sales of, electric fencing. This page contains details on the exclusion of foxes using such fences.
National Fox Welfare Society: Fox problems - Information about common fox nuisance problems and how to address them.
Check-a-Trade - A reliable, rated searchable database including various pest control companies from across the UK.

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DISCLAIMER: Links are provided for the purposes of information and further research only - their inclusion here is not an endorsement of the product(s).

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