When our actions cause an animal to feel threatened, and it actively tries to escape from us or change its behaviour, this is known as wildlife disturbance. Examples include flocks of birds flying away, hauled-out seals stampeding into the water, and otters abandoning their hunt for food.
However, disturbance can be as simple as an animal looking directly at us because it has become watchful in our presence. Wildlife disturbance can also happen without an animal being there – for example, if we accidentally trample on a nest.
Causing a bird to fly away may not seem like anything to worry about but, in trying to escape from you, the bird is using valuable energy and could get injured. It may also abandon a nest or young. Although you may feel that your actions have little impact, others may have been in the same area before you. The repeated disturbance causes unnecessary stress, particularly during the breeding season for that species or during cold weather.
Getting too close to wildlife when exploring the outdoors can also put yourself and those around you at risk, as some animals may become aggressive when they feel threatened. For example, allowing a dog to run up to seals resting on the shore may result in the dog getting bitten and you getting hurt if you try to intervene.
It is also important to remember that some irresponsible behaviours towards wildlife may be a criminal offence.
Most wildlife disturbance happens by accident when we are exploring outdoors. The good news is that we can all do our bit to prevent it by following the tips below and the Scottish Outdoor Access Code.
As soon as you see wildlife, assess the situation. What are the animals doing? Where are they going? How can I avoid disturbing them?
Always watch wildlife from a respectful distance and learn to spot the signs of disturbance (such as “heads up” responses, alarm calls, sudden movements or aggressive behaviour) so you know when your presence has a negative impact. Be prepared to move away when you see these behaviours.
If you are passing close to wildlife, do so slowly and cautiously. Make sure that your movements are steady and predictable, and do not approach directly.
Move away from wildlife as quietly and carefully as possible – your exit should be as careful as your approach.
Even a well-trained dog can frighten wildlife by being curious when exploring. So, it’s safest to keep your four-legged friend in sight (so you can see what it is doing) - or on a lead - when you’re unsure if there are animals nearby. For example, you may not see deer hidden in woodland or hares hunkered down in fields, but your dog will be able to smell them.
It is particularly important to keep your dog close to you when ground-nesting birds are breeding and rearing their young – usually from April to July – in areas like moorland, forests, grassland, loch shores and the seashore.
Allowing your dog to chase wildlife may seem harmless, but it causes immense stress to the animal and could result in an accident, such as if a deer runs onto a nearby road to escape.
Use paths wherever possible - to prevent damage in more sensitive natural habitats and to avoid disturbing animals and nests hidden in long grass or camouflaged on the forest floor.
When doing water-based activities, take care when entering and leaving the water and avoid any no-paddle zones to help protect birds that nest near the waters edge. Take extra care if you are passing by or landing on an island, as these can often be a good refuge for wildlife.
Follow any locally available advice or signage about avoiding disturbance to wildlife. You may also find information on how to spot more elusive species on these signs, so it’s always worth pausing to read them.
Take litter away with you to prevent it from injuring wildlife.
There are also various guides to help you avoid disturbing wildlife, depending on the activity you are taking part in;
Be aware. Before you go wildlife watching, learn about the animals you might encounter. Understand how your actions could affect them. Be alert to the signs that animals make when they feel threatened. Be observant, patient and sensitive to the interests of the wildlife you are watching.
Take responsibility for your own actions. Constantly assess the wildlife’s reaction to your presence and, if you see signs of disturbance, move away quietly. Consider how much time you spend watching animals. The presence of people over long periods can be disturbing, however careful you may be.
Have respect for other people, wildlife and the environment. Use your right of responsible access wisely. Respect the privacy and livelihoods of those who live by the sea. Leave the environment as you find it.
In Scotland, you can go on to most land to enjoy the outdoors – as long as you behave responsibly. This is known as Scottish access rights and is different to the position in England and Wales. When you are enjoying the outdoors, you must follow the Scottish Outdoor Access Code.
The Scottish Outdoor Access Code is based on three key principles
Respect the interests of others. e.g. do not act in ways that might annoy or alarm people, especially at night.
Care for the environment. e.g. don't disturb wildlife, take your litter away with you. If you have a dog, keep it under proper control, take special care if near livestock, or during the bird breeding season, and always pick up after your dog.
Take responsibility for your own actions. e.g. care for your own safety, keep alert for hazards, take special care with children.
Other things to consider;
Gates: Use a gate where one has been provided and leave it as you find it. Do not climb over gates, fences, dykes or hedges unless there is no reasonable alternative nearby. If you have to climb over a fence, avoid causing any damage by doing so near to a post. Climb a gate at the hinge end.
Livestock: Access rights extend to fields with farm animals, but remember that some animals, particularly cows with calves but also horses, pigs and farmed deer, can react aggressively towards people. Before entering a field, check to see what alternatives there are. If you are in a field of farm animals, keep a safe distance and watch them carefully. If you have a dog with you, see the guidance on dogs.
Parking: When you park your vehicle it is important not to cause any damage or create an obstruction by:
not blocking an entrance to a field or building (or passing place)
not making it difficult for other people to use a road or track
having regard for the safety of others
trying not to damage the verge
using a car park if one is nearby.
The Scottish Marine Wildlife Watching Code provides practical guidance aimed at raising awareness on how best to enjoy watching marine wildlife, whilst minimising disturbance, ensuring any encounters you do have whilst at sea remain within the law.
NatureScot have also produced 'A Guide to Best Practice for Watching Marine Wildlife', which provides some advice on how best to reduce disturbance whilst out on the water, should you come into contact with any marine wildlife!
The Code advises that whilst you're at sea,
if you are passing close to wildlife, reduce your speed to the safest minimum. Make sure that your movements are steady and predictable and approach at an oblique angle – direct or head-on approaches are more threatening. Depart with equal caution.
Speed increases the likelihood of collisions, the severity of injury to the animals, and the danger to the boat users. Noise and other forms of disturbance may also be associated with increased speed. We recommend less than 6 knots as an appropriate speed through the water when close to marine animals.
Minimise your time with the animals. A good rule of thumb is 15 minutes if there is more than one boat, and 30 minutes if you are alone. But if at any time you see signs of agitation or stress you should depart as slowly and carefully as you can. Make sure you take a good look before making any change of direction. There may be animals all around you.
Current rules of thumb for minimum approach distances are:
50 metres for dolphins and porpoises
100 metres for whales
200–400 metres for mothers and calves, or for animals that are clearly actively feeding or in transit (moderate to fast swimming in a single direction)
Haul out sites are where seals come out of the water to rest, moult, breed and to have pups. Seals that are hauled out may be particularly sensitive to approach by humans or vehicles, therefore caution is required in such circumstances. Under the Marine (Scotland) Act 2010 it is an offence to intentionally, or recklessly harass a seal at a designated haul out site.
More advice related to seals can be found on the Marine Directorates website, including a blogpost on how to reduce disturbance, and the NMPi interactive, which shows designated haul out sites for seals in Scotland (below).
There are some body language cues that can let you know if you are at risk of disturbing seals. They have a three-stage response to perceived threats:
heads-up – the seals raise their heads and watch your location and approach. If you see this behaviour, you should back away and/or change your method and speed of approach.
movement – the seals will start to shift around and appear agitated. If they were laying on their sides they may move to their stomachs to allow them to retreat. If you notice this behaviour you need to back off from the seals so you do not cause the third stage of the response.
stampede – the seals will quickly retreat from land to the water to escape. This puts the seals at risk of injury as well as any pups that are amongst them.
The Scottish Marine Wildlife Watching Code (SMWWC) provides recommendations and advice on responsible wildlife watching. Some helpful tips include:
look up the site you intend visiting for any local wildlife management information and follow their guidance
be aware of the local pupping seasons – avoid visiting breeding sites during these periods
Harbour seals usually give birth in early summer (June – July) and spend time ashore in August for their annual moult.
Grey seals give birth in the autumn (September – December) and stay on land for several weeks. Adults and pups leave in the spring once they have finished their moult and the pups have been weaned.
keep your distance and keep dogs away as they can cause a stampede response
do not try to touch or feed seals, they can move surprisingly fast and as cute as they may appear they are predators and are known to bite
never separate pups from mothers as this leads to stress for both and risks abandonment by the mother
leave lone pups alone – the mother may only be foraging for food
don’t crowd or encircle seals and do not stand between them and an escape route to the water
keep the noise down and avoid sudden movements
If you're around Shetland (or anywhere along Scotland's coasts) and think you have seen someone committing a wildlife crime, contact the police. Disturbance is illegal and reporting it to the police will help them to raise awareness and, where necessary, take action to protect marine mammals. You can do this by dialling 101 or 999 in an emergency. Alternatively, you can report non-urgent incidents via the online Police Scotland form.
Banner Image Credit Hugh Harrop / Shetland Wildlife
Seal Image Credit Emily Hague