The Natural Diet of Wild Hedgehogs
Wild hedgehogs are primarily insectivores, meaning their diet is dominated by insects and other invertebrates. This natural feeding behaviour is crucial for their survival and helps control garden pests. In a healthy, natural environment, they forage diligently throughout the night, using their excellent sense of smell to locate their next meal. Their diet is varied and opportunistic, adapting to what is available seasonally and locally.
The backbone of a wild hedgehog’s diet includes a wide array of insects such as beetles, caterpillars, earwigs, and millipedes. They are also fond of slugs and snails, which they can eat without harm, unlike many other garden creatures, due to their immunity to slug slime. Worms are another staple, providing a good source of protein and moisture. Spiders and small amphibians like frogs, if encountered, can also form part of their meals. Occasionally, they might consume fallen fruit or berries, especially towards the end of summer and into autumn, providing extra energy.
It's important to recognise that hedgehogs have specific dietary needs that are best met by their natural foraging. Providing inappropriate food can cause more harm than good. For instance, milk is a common misconception; hedgehogs are lactose intolerant and can become very ill if offered dairy products. Water is also vital; always ensure a shallow source of fresh water is available in the garden, especially during dry spells.
- Wild hedgehogs are natural insectivores.
- Their diet includes insects, slugs, worms, and fallen fruit.
- Avoid feeding hedgehogs milk due to lactose intolerance.
- Fresh water is essential for wild hedgehogs.
Key Food Sources for Wild Hedgehogs
When foraging, hedgehogs seek out diverse protein sources. Beetles and their larvae are a significant part of their diet, offering substantial nutrition. Caterpillars, despite sometimes being considered garden pests, are a treat for hedgehogs. Earwigs and woodlice are also commonly consumed. The hedgehog's ability to digest snail shells provides calcium, which is important for bone health. Understanding these preferences helps in appreciating why a healthy garden ecosystem is so vital for hedgehog populations. A garden rich in wildflowers, for example, can support a greater variety of insect life, thereby providing a more stable food source for hedgehogs.
The natural foraging behaviour of hedgehogs is a finely tuned process, adapted over millennia to exploit available resources efficiently. Their spiky defence mechanism means they are not prey for many animals, allowing them to forage relatively undisturbed during their active hours.
What to Avoid Feeding Hedgehogs
While it’s tempting to help out our prickly garden visitors, providing the wrong food can be detrimental to their health. Many common garden offerings, often based on outdated advice or well-meaning mistakes, can cause serious harm. The most critical item to avoid is milk and dairy products. Hedgehogs lack the enzyme lactase, which is necessary to digest lactose, the sugar found in milk. Feeding them milk can lead to severe digestive upset, diarrhoea, dehydration, and ultimately, can be fatal. This applies to all forms of milk, including cow's milk, goat's milk, and even cream.
Bread is another food that should never be given to wild hedgehogs. It offers very little nutritional value and can fill their stomachs, leading them to feel falsely satiated while not providing the essential nutrients they need. High in carbohydrates and low in protein and fat, bread can contribute to malnutrition and other health problems if consumed regularly. Similarly, processed human foods, pet food meant for cats or dogs (unless specifically recommended by a wildlife rescue organisation in dire circumstances), and anything containing artificial sweeteners or colours are unsuitable and potentially toxic.
It is always best to allow hedgehogs to forage naturally whenever possible. If you wish to supplement their diet, it should be done with extreme caution and only with appropriate foods. For instance, a small amount of meaty cat or dog food (tinned or dry, low-fat, and without added sugar or artificial colours) or specific hedgehog food purchased from a reputable garden centre or wildlife supplier is more suitable. However, this should be a rare supplement, not a regular meal, and never offered in place of fresh water. The focus should always be on creating a hedgehog-friendly habitat that supports their natural food sources.
Always place supplementary food in a shallow dish, away from busy areas, and remove any uneaten food the following morning to prevent attracting pests or disease.
The consequences of incorrect feeding can range from mild stomach upset to severe illness and death, highlighting the importance of accurate information when trying to assist wildlife.
Creating a Hedgehog-Friendly Garden
Beyond understanding what hedgehogs eat, creating a safe and supportive environment is paramount to their well-being. This involves more than just providing food; it's about offering shelter, safe passage, and fostering their natural food sources. A garden that is too tidy can inadvertently harm hedgehogs by removing their habitat and food. Leaving areas a little wild, such as a log pile, a compost heap, or a patch of long grass, provides excellent shelter and a hunting ground for insects. These 'untidy' corners are where beetles, slugs, and other invertebrates thrive.
Ensuring hedgehogs can move freely through your garden and into neighbouring ones is also critical. Many hedgehogs are injured or killed by fences or walls that prevent their movement. Creating small holes (about 13cm x 13cm) in fences or garden boundaries allows them to travel safely, which is vital for finding mates and foraging across a wider territory. Drains and steep-sided pits can become traps, so cover drains and ensure any water features have shallow, sloping sides or ramps for easy escape.
Encouraging Natural Food Sources
To directly support what hedgehogs eat in the wild, focus on attracting their natural prey. Planting a variety of native wildflowers and plants that attract insects is highly beneficial. Flowers like foxgloves, honeysuckle, and native grasses can provide nectar for pollinators, which in turn feed insectivorous birds and other creatures that hedgehogs might prey upon. Avoid using slug pellets and other chemical pesticides, as these can poison hedgehogs directly or indirectly by reducing their food supply. Instead, consider natural pest control methods or simply tolerate a certain level of 'damage' in exchange for a healthier ecosystem.
Consider setting up a hedgehog house or hibernation box in a quiet, sheltered spot. These offer protection from predators and the elements, especially during their hibernation period in winter. While not directly related to their diet, a secure place to rest and hibernate is as important for their survival as food itself. A well-maintained hedgehog house, placed in a secluded area, can become a vital refuge.
The most effective way to help hedgehogs is to make your garden a haven for both them and their food sources. This holistic approach ensures their long-term survival and supports local biodiversity.
Supplementary Feeding and Rescue
In situations where natural food sources are scarce, particularly during prolonged dry spells or harsh winters, supplementary feeding can be a lifeline for hedgehogs. However, this should be done judiciously and with the right kind of food. As previously mentioned, only use high-quality, meat-based cat or dog food (dry or tinned, low-fat, no added sugar or artificial colours) or specific hedgehog food. It is crucial to place this food in a shallow, heavy dish that won't tip over and to check that it is fresh each night, removing any uneaten food by morning.
Always provide fresh water alongside any food. A reliable water source, like a shallow dish of water, is critical, especially in hot weather when natural water sources may dry up. The goal of supplementary feeding is to provide a boost, not to replace their natural diet. Over-reliance on human-provided food can make hedgehogs dependent and less likely to forage for themselves, potentially weakening their natural instincts and dietary diversity.
If you find a hedgehog that appears injured, sick, or is active during the day and seems lethargic, it's important to seek professional advice. Contacting a local wildlife rescue centre or a hedgehog-specific charity is the best course of action. They have the expertise to assess the animal's condition and provide appropriate care. Never attempt to treat an injured or sick wild animal yourself without expert guidance. Wildlife rescue organisations often provide advice on what to feed hedgehogs in their care, which is usually a carefully balanced diet tailored to their specific needs, often including specially formulated food or insect-based diets.
The decision to provide supplementary food should be based on genuine need and informed by best practices to ensure it aids, rather than harms, the hedgehog.