By Jayna Connelly, Science Communicator
You might have seen recent reports about the release of captive-reared Turtle Doves into the countryside as part of efforts to help reverse the decline of one of Britain's most threatened farmland birds. While everyone involved shares the same goal of restoring Turtle Dove populations, the key question is whether releasing captive-reared birds is the most effective and scientifically justified approach at this stage. Effective conservation depends on following the best available evidence and established international guidance, and it is important to understand how current proposals align with that. The Game & Wildlife Conservation Trust sets out these principles clearly in its science-based approach to species translocations.
The Game & Wildlife Conservation Trust has long championed an evidence-led, habitat-first approach to Turtle Dove conservation. Through the Allenford and Martin Down Farmer Clusters, farmers work together to manage their landscapes for the species' full ecological needs. They provide seed-rich foraging areas, cultivate arable strips for wild plants, offer supplementary feeding with a bespoke Turtle Dove mix, and maintain reliable water sources. Alongside this, they deliver targeted predation management during nesting and fledging, expand scrub, and improve the quality of nesting cover. Together, these actions create the mosaic of food, water, shelter and safety Turtle Doves need to recover.
These projects closely reflect the principles set out in IUCN conservation guidance by addressing the underlying causes of decline, improving habitat quality across entire landscapes and monitoring outcomes to ensure interventions deliver measurable conservation benefits. This is the same evidence-led approach that underpins GWCT's species recovery work, including projects involving Curlew and Black Grouse, where conservation action is accompanied by intensive monitoring, strict licensing requirements and adherence to recognised international guidelines.
The encouraging news is that this approach is already delivering results. Farmers, land managers and conservation organisations working together through landscape-scale initiatives have demonstrated that Turtle Doves respond positively when their ecological requirements are met.
It is notable that Operation Turtle Dove, the national partnership established specifically to conserve Turtle Doves in the UK and including organisations such as the RSPB, Natural England, Pensthorpe Conservation Trust and the Fair to Nature conservation programme, does not currently support the release of captive-bred Turtle Doves as a conservation measure in the UK. Indeed, the RSPB's own Turtle Dove expert, Mark Nowers, has consistently advocated a habitat-led recovery strategy rather than the release of captive-reared birds.
Operation Turtle Dove's position is based on several key concerns. Firstly, the partnership argues that captive releases do not currently satisfy internationally recognised conservation translocation guidance, including IUCN guidelines, Defra's Code for Conservation Translocations and the International Single Species Action Plan for the European Turtle Dove. Secondly, and perhaps most importantly, decades of research show that habitat loss and the reduction of seed-rich feeding areas have severely limited breeding success. Therefore, restoring sufficient nesting habitat and food availability remains the highest conservation priority. Thirdly, there is currently little evidence that artificially increasing numbers through releases is necessary. Turtle Doves in Britain form part of a wider western European population, and there are encouraging signs that populations can naturally recolonise suitable areas where habitat conditions are favourable.
There is limited data on some of the potential risks associated with releases, including disease transmission, genetic issues and altered migratory behaviour; precisely the types of risks that international conservation guidelines require practitioners to assess carefully before any releases are undertaken.
From a local perspective, there are legitimate questions about whether sufficient habitat restoration has occurred across parts of the release landscapes to meet the expectations set out within IUCN conservation translocation guidance. To establish sustainable breeding populations, Turtle Dove habitat requires more than restored ponds and enhanced hedgerows. Successful conservation depends on the availability of abundant seed-rich foraging habitat, particularly cultivated uncropped margins and other habitats that provide food during the breeding season. Equally important are areas of scrub and dense hedgerow structure that offer suitable nesting opportunities. These requirements need to be delivered at landscape scale if released or naturally colonising birds are to thrive.
For a migratory species travelling between Britain and sub-Saharan Africa, the obstacles are considerable. Captive-reared birds are often more vulnerable to predators than their wild counterparts and there is limited evidence regarding whether captive-reared Turtle Doves can successfully migrate and return in sufficient numbers to contribute meaningfully to population recovery.
Species reintroductions and releases often attract public attention because they offer visible and immediate action. Some of Britain's most celebrated conservation success stories, including Red Kite, White-tailed Eagle and Beaver restoration projects, have understandably generated enthusiasm for conservation translocations. However, these successes generally followed extensive planning and, critically, occurred only after the primary causes of decline were addressed.
For species such as the Turtle Dove, where habitat quality, food availability and breeding productivity remain central conservation challenges, the evidence suggests that habitat restoration remains the foundation on which any long-term recovery must be built.
Ultimately, everyone engaged in Turtle Dove conservation wants to see this iconic migratory bird thriving once again in the British countryside. Achieving that goal will require continued collaboration, rigorous science and a commitment to the principle that lasting species recovery depends first and foremost on restoring the habitats and ecological conditions on which wildlife depends.