Bison In The Mist 2 Dec2022 (Donovan Wright)
Sparring (Bull & F2) 1 Feb2023 (Donovan Wright)

What is the Blean bison project?

In 2019 Wildwood Trust and Kent Wildlife Trust launched a flagship wilding project, ‘Blean bison' in Blean woods near Canterbury. The project promotes stronger habitats by restoring natural processes that are able to withstand the current environmental crisis and species decline, and in the long run, reverse it.

In the UK, lack of woodland management is one of the eight biggest drivers of species decline. The Blean project aims to bring transformational change through a controlled trial with bison; a missing keystone species that is able to naturally manage woodlands.

A key part of this project was the extensive consultation and engagement with local landowners, interest groups and residents who know and love this area.

Although European bison were never native to the UK, Steppe Bison and other wild grazing animals once were. European bison are now our best chance at recreating those grazing behaviours that once existed. Despite their size, bison are peaceful animals whose ability to fell trees by rubbing up against them and eating the bark, gives space for other plants and animals to thrive. Bison will be accompanied by other grazing animals to create the greatest plant and animal diversity possible.

Silver Birch Aug2022 (Donovan Wright)

Where is it?

The project takes place in part of the West Blean woods nature reserve, which is in one of the largest areas of ancient woodland in the UK.

The wood is ever-changing and has an ancient droveway through it that is almost a thousand years old. Before Kent Wildlife Trust bought the wood, it was managed commercially for timber production, which is why almost half of the wood is covered in plantations of non-native conifer trees.

Bison Scratch 1 July2022 (Donovan Wright)

Why did we embark on this project?

In the UK, we’re headed for increasing species extinctions in the next 10 years. We know that the key to enabling species to survive and thrive is to create a nature recovery network, of bigger, better quality, and more joined up habitats

Species in the UK are declining at their fastest rate for thousands of years according to the latest State of Nature report and unfortunately human management alone is not enough to create the kinds of habitats species need.

What we need are natural solutions and this is why we have taken this first step to drive ‘Wilding’ at Wildwood Trust and in collaboration with Kent Wildlife Trust across some of their sites in Kent. Wilding is when nature is given the tools and space it needs to recover itself and has the potential to increase abundance of biodiversity to levels beyond what human management achieves and helps store carbon.

Join the future of UK wilding and help support our groundbreaking work by making a donation to the Blean bison project, adopting one of our animals or by booking an animal experience.

We encourage you to learn more about wilding and how it can help reverse the climate and nature crisis that we are currently in.

Please follow Wildwood Trust’s social pages and Kent Wildlife Trust’s social pages for updates on how you can get involved – both organisations will be posting updates via social media, website and emails.

The project will take place in West Blean woods, near Canterbury in East Kent.

Wildwood Trust adjoins the West Blean Woods which is owned by Kent Wildlife Trust. This woodland is in one of their largest nature reserves and largest areas of ancient woodland in the UK. Before Kent Wildlife Trust bought the wood, it was managed commercially for timber production, which is why almost half of the wood is covered in plantations of non-native conifer trees that have little value for wildlife.

Traditional conservation approaches haven’t halted the alarming loss of species diversity and abundance that we continue to witness. The climate is changing and our landscapes aren’t resilient enough to support the wildlife and communities that inhabit them. We need to adopt bolder, new approaches in conservation and we all need to take action now.

Traditionally, conservation management has been a very intensive activity, relying upon significant human effort supported by machinery. But conservation approaches are changing as we recognise that nature could actually do the job better. In the UK, we’re heading towards an increasing number of species extinctions in the next 10 years. Species in the UK are declining at their fastest rate for thousands of years according to the latest State of Nature report. Human management alone is not enough to create the kinds of habitats these species need. By getting the right animals for the job (so-called ecosystem engineers) we expect to see the woodland transformed into a richer, more species abundant place for wildlife and people to enjoy.

This is the first of what is expected to be several projects which use ‘wilding’, a nature-based solution, to deliver greater diversity and abundance of wildlife on Kent Wildlife Trust’s nature reserves.

Wilding is when nature is given the freedom and space it needs to recover itself and has the potential to increase the abundance of wildlife to levels beyond what human management achieves. It also can help tackle many man-made issues such as climate change, soil degradation and flooding. On the West Blean site that means the introduction of grazing animals including bison, cows, ponies and pigs to help manage the woodland in a more natural way.

This is a different approach to tackling the same problem.

Kent Wildlife Trust has been working to remove the non-native conifers for many years now. In the past this has involved chainsaws and large pieces of machinery to remove large areas of trees at a time. This is far from ideal for wildlife. Bison are able to selectively fell trees and cause others to die back slowly, this is a much more natural approach which will maximise the opportunities for wildlife to flourish, creating a greater mosaic of habitats. It is also much more sustainable financially and reduces the carbon footprint of woodland management. In order to maximise benefits to wildlife across a large area we all need to consider new ways of working, something Wildwood Trust and Kent Wildlife Trust already know about from jointly pioneering the country’s first beaver reintroduction project almost 20 years ago.

Wilding is an attempt to provide a natural solution to the current biodiversity and climate crisis.

This project is about wilding rather than ‘re-wilding’ – This project is using this approach to see what works in the modern world. Rather than attempting to recreate a specific point in the past there needs to be natural solutions to the climate and biodiversity crisis we now face. This project will provide a richer natural environment and visitor experience in West Blean woods.

Access to nature is fundamental to our health and wellbeing. Wildwood Trust and Kent Wildlife Trust want to give people the opportunity to connect with nature near to where they live. We need the right tools, ecosystem engineers, in the right places to solve the climate and biodiversity crisis.

Space for nature is at a premium in the densely populated South East. However, what is clear is that giving people the opportunity to connect with wildlife on their doorsteps has huge benefits from a health and wellbeing perspective, as well as a wider societal one. We need to try and squeeze as much nature as we can out of what limited space we have. A mixed-grazing project like this is an attempt to do just that.

The initial phase of this project ran for 3 years until May 2023 and has received separate project funding. It is, however, part of a much bigger programme of work that will form a core part of what Wildwood Trust and Kent Wildlife Trust are striving to achieve for decades to come.

The shared vision of creating a Wilder Kent is the reason that Wildwood Trust has joined forces with Kent Wildlife Trust, bringing together our respective conservation expertise. The flagship project for this vision is the Bison Blean.

The first Bison arrived in spring 2022 and before then all the necessary infrastructure, fences and gates as well as ponds and watering holes were installed. Improvements were also made to visitor access by way of viewing platforms and new paths to ensure the impacts on visitor experience are as amazing as the impacts for species diversity and abundance.

The Bison herd of one bull, 3 adult females and 2 calves can be seen at times from the viewing platform at Wildwood, overlooking a watering hole in the Blean woods.

Yes, a comprehensive ecological monitoring programme has been developed that is led by Kent Wildlife Trust’s Wilding Evidence Ecologist and overseen by the Trust’s Conservation Evidence Manager.

This includes monitoring multiple different layers of habitat so that change can be detected wherever it occurs. Everything from soil sampling and worm counts to collecting data on vegetation structure with drone technology. Several different groups of species including, invertebrates, birds and mammals will be monitored. In addition, Wildwood Trust and Kent Wildlife Trust will be working with various universities to establish a number of research projects. There will be many opportunities to get involved with this work. Keep an eye out for these opportunities as they arise on our websites at and

This is a first for the UK. However, in Europe, bison are used in several different countries to manage and enhance habitats.

We have visited projects of a similar nature in the Netherlands, where 4 separate European bison grazing projects are currently running and brought back a huge amount of information and learning. In Haarlem, for example, bison have been used to restore a site for 15 years as part of a project in very close proximity to a major city. There is now free public access through the area with the bison, providing an amazing visitor experience. The habitats there have dramatically improved since the reintroduction of the bison, hence why they can be called ecosystem engineers. The project team are frequently speaking to the Dutch teams that manage these projects and gaining further insights and sharing knowledge and ideas. Here are a few useful links to similar projects on the continent. Many of the techniques used here have been used to inform this project:

Bison manage habitats in a way that no other animal can. In West Blean woods, ways to encourage more light to the woodland floor and increase the amount of deadwood are needed to benefit native plants and animals, and this is exactly what the bison can do.

The way bison graze and interact with their surroundings is unique; targeting bark rather than other parts of a plant, creating ‘bull pits’ or ‘sand baths’ by dust bathing, removing moulting fur by rubbing against trees and due to their large size and strength, creating corridors through densely vegetated patches which in turn links up microhabitats. All these behaviours can create a healthy life cycle in a woodland and create gaps in the canopy that provide a 3-dimensional habitat to the benefit of a variety of species. Without an animal like bison these functions are missing in woodlands, and this project aims to restore those functions.

We are in a biodiversity and climate crisis and we must all act now if future generations are going to be able to experience nature in the way we have done. Bison are one of a number of possible nature-based solutions and Wildwood Trust and Kent Wildlife Trust know that they need to lead the way so that other projects can learn from this one.

Both organisations are already involved in many other species projects too, including beaver (another ecosystem engineer) and want to inspire others to act with big dreams such as this.

European bison are the closest living relative to the Steppe Bison which used to roam the UK several thousand years ago.

They are the best chance there is to restore the function which was lost when the earlier species went extinct.

No, these animals are too domesticated to be released into the wild.

Although they are both beloved members of the Wildwood Trust family, they are captive-bred adult animals who have never been taught how to live in the wild and so they are not the right fit for release. The bison on site at West Blean were sourced from free-ranging herds. Such animals are able to forage for themselves, live without a man-made shelter and respect fence lines. They are also less used to associating humans with food, which means they’re more likely to keep themselves to themselves.

Globally, there are two different types of bison alive today: European bison, and their cousins, American bison. They look quite similar however they behave differently. American bison graze on the grass of wide and open plains whereas European bison are more adapted to woodlands. In this project, European bison are being used.

Although they look quite similar, in general, European bison are a little taller than American bison, with less dense fur, and American bison are a bit stockier than European bison. They feed differently to one another due to their necks being differently set – American bison will graze on low-lying grass and leafy vegetation, whereas European bison will browse on leaves, fruit, and woody parts of plants and trees, perfect for UK woodlands. In the past there were more species of bison that have now gone extinct. These are the only remaining species that can do the job they do.

Cows, horses and pigs will be freely roaming within the site. Cows and horses have been used for many years although now they will be grazing across the whole site. Pigs are a new addition but will be in very low numbers (currently planned to be around 4 pigs).

Cows and horses will still be used, with bison being used in combination with these. Bison provide a missing function within the ecosystem. The way bison interact with land is different to other grazing animals found in the UK, like horses or cows. For instance, horses will typically only eat softer grasses, cattle will eat soft vegetation as well as twigs, but only bison will typically target and eat bark in addition to grasses and sedges. This means that the effect bison have on trees is different to cows – bison feeding can ringbark and kill select trees, leaving room for others to come through. Bison also uniquely tend to rub up against select trees to remove their thick coat of winter fur, which has a similar effect. Pigs are fantastic at churning up soil and helping seeds to grow. It is when introduced all together that these animals can be most effective, and this is what is intended in the project.

Animal welfare is a critical factor in this project. Robust animal monitoring practices are being used based on international standards of best practice.

Wilding is indeed about being as hands-off with management as possible. Nevertheless, the project team has a responsibility to the animals to ensure their welfare and that they are safe. There are rangers dedicated to the monitoring of bison. Bison have regular health checks by trained staff, using a standardised best practice system in place across projects in Europe. These are used to identify any illness or health issues that might require treatment. Any problems will be closely monitored and if an animal doesn’t show any signs of getting better, appears to be in pain, or has a low score on the health check system, it can be brought in, for veterinary observation, using special corral facilities on site.

There is a dedicated team of staff working on the reserve each day. Any issues will be picked up and managed according to the problem.

Kent Wildlife Trust has been safely managing conservation grazing West Blean with horses and cows for many years. Wildwood Trust staff train for animal escapes regularly and they also have extensive experience of managing bison in a variety of settings. There are robust systems in place to ensure that animals are safe, well, and unlikely to ever want to escape this beautiful area. Nonetheless, all appropriate risk assessments and emergency procedures are in place, so that specially trained teams can be deployed quickly to deal with an emergency, in the unlikely event that one does occur. All the infrastructure on the site is also being upgraded, including the entire boundary fence.

This has been carefully considered and is very low risk however through regular checks and health screening of animals it will remain that way.

Any grazing animal will be subject to strict disease screening and quarantine before being approved for use in the project. Wildwood Trust are very experienced in completing these processes to a high-quality and following best-practice standards and will continue to do so on this project.

Yes, on the public rights of way.

The bison are in a controlled, fenced trial area away from public footpaths. This project is all about demonstrating a woodland coming back to life and as part of this many of the footpaths are planned to be improved, new circular walks will be created and the opportunities for people to interact with the woodland will be increased overall. Only once the bison are settled will there be supervised access into the bison area. In the Netherlands, where bison are used more widely, people are able to walk through areas where bison are present without any issues, so long as people maintain a respectful distance.

The public footpaths are not changing.

There are many footpaths crossing the site and these won’t be changing. The site is used by many different groups of people and Kent Wildlife Trust needs to make sure that it continues to be safe to visit. Nothing will be changing immediately, however as the infrastructure will be changed and upgraded the project team wants to hear from all user groups as to how this might affect them.

Yes, as well as the fenced-off bison area which will have raised viewing points, the site will have free-roaming cattle and horses as it has done for many years and in addition there will be a small number of pigs (currently planned to be around 4 pigs).

As with all livestock and wild animals people should always keep a respectful distance away and dogs should be kept on a lead so as not to cause the animals stress. These animals, whilst safe, are not pets and are on the site to do a job. They should never be fed by the public.

In addition to the current Wild Art Trail which will remain, Kent Wildlife Trust are planning to improve the surfaces of some of the paths making them more accessible to wheelchair and reduced-mobility users.

Viewing towers will be built so that visitors can look out over the bison area and these are planned to be as accessible as possible.

A viewing platform has been built at Wildwood which overlooks a watering hole where the bison can occasionally be seen drinking.

An entirely new perimeter stock fence has been installed, added to which the bison are inside another fence within this area.

Dedicated rangers, supported by a team of volunteers carry out regular fence checks to ensure the site remains safe and secure at all times.

Anyone can follow Wildwood Trust and Kent Wildlife Trust social media channels and subscribe to their newsletters for updates on how everyone can make sure their voice is heard. Updates will be posted across both organisations’ social media platforms.

The project team would love to hear from local people. As the project develops there will be many ways in which people can get involved, see below for a selection of what is to come.

  • If projects like this, demonstrating new, bolder approaches to restoring nature, excite you – shout about it! Now more than ever we need advocates for nature: write to your MP, sign a petition and become a member of Wildwood Trust or Kent Wildlife Trust. It all helps secure a future for our wildlife and wild spaces.
  • Visit our website and support our conservation work by adopting an animal, booking an animal experience or making a donation.

  • Record and report wildlife sightings (use iRecord or post them on social media and tag @kentwildlife).
  • Report any issues, that way they can be fixed in a timely fashion.
  • Keeping dogs on a lead and by ensuring all litter is taken home.
  • For regular visitors? Why not consider becoming one of the project’s livestock or fence checking volunteers? See below.

We will be needing lots of volunteer assistance as the project develops and we’ll post details of all volunteer opportunities on our website as they arise. The types of roles we’ll be recruiting volunteers for will include:

  • Public-facing project guides to help explain the project.
  • Fence checkers to ensure the site remains safe and secure.
  • Livestock checkers to ensure the animals are well and happy.
  • Wildlife footage reviewers, to ensure we don’t miss anything interesting picked up by our cameras.
  • Ecological monitoring assistance to help deliver our comprehensive ecological monitoring programme.


Read our blog HERE.


Adopt the Bison Blean HERE.

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