Press release from Wildlife Poisoning Research UK (WPRUK), 22 July 2026:
CONFIRMATION OF FURTHER EAGLE POISONINGS IN DORSET
The white tailed sea eagle is one of England’s rarest and most impressive birds of prey, with a wing span often over 2 meters. A small group of these birds has been established by conservationists by re-introducing them onto the Isle of Wight from where they have spread out across England. However, this fragile population is under threat from a range of dangers, including poisoning from eating contaminated food such as poisoned rats. Nature lovers were outraged when one of the eagles was killed by poison in Dorset in 2022.
An investigation by the wildlife group WPRUK has now shown that at least two further sea eagles were poisoned in Dorset in 2024, although many details of these incidents have been kept secret by the Government. The toxins involved are called Second Generation Anticoagulant Rodenticides (SGARs) – frequently used to kill rats by farmers, gamekeepers, pest controllers and householders. These were the same poisons that killed the eagle in 2022.
One eagle was originally recorded by the Health and Safety Executive (HSE) as having died by electrocution in November 2024. However, from WPRUK’s attempts to establish the truth using Freedom of Information requests, it was confirmed by the Government agency, Natural England, that: ‘the high concentrations of second generation anti-coagulants reported in this eagle were of sufficient concern to justify further investigation.’ However, the HSE initially claimed that only background levels of these poisons were found in the liver.
Large residues of SGARs were found in the liver of a second sea eagle found dead in May 2024, which are believed to have been partly responsible for the bird’s death.
SGAR toxins start to have a lethal impact on sea eagles when levels reach above 0.1 mg/kg of the poison in the liver. WPRUK have established that the poison levels in the two 2024 eagles were far higher. The bird found in November had a toxin level of 0.194 mg/kg, while the one discovered in May had a staggering 0.43 mg/kg. Despite these incidents happening many months ago, Government agencies are still withholding the full details of the bird deaths. What are they so scared of? Two further eagles have now died in Dorset, one in March 2025 and one in March 2026. The full report for the bird that died in 2025 is also being withheld, although WPRUK has established that this too was exposed to SGAR poisons.
Is Government policy to blame for these eagle poisonings?
The dangers of these toxins have been known for many years and an environmental risk assessment in 2012 recommended that they should not be used outdoors due to the secondary poisoning risk – this is when the poisons move up the food chain. Poisons put out for mice and rats end up killing the top predators such as eagles. However, this risk assessment was ignored by the Government which permitted their continued use and even relaxed the regulations controlling where the higher toxicity poisons such as Brodifacoum could be used. This allowed the use of this poison outdoors for the first time, much to the alarm of wildlife experts.
The continued outdoor use of SGARs was on the condition that the chemical industry, by introducing better working practices by users, achieved a ‘significant reduction’ in the level of SGAR exposure in wildlife. This was part of the Government’s approved Rodenticide Stewardship Scheme.
WPRUK has been collecting data on SGAR exposure in buzzards in England and Wales to see if this ‘significant reduction’ has actually occurred.
So, what has happened?
The chemical industry’s attempts to reduce toxin exposure has been a complete failure. If two time periods, 2005 to 2013 and 2020 to 2024 are compared, it is found that:
- The proportion of buzzards exposed to potentially lethal amounts of SGAR toxin (above 0.1 mg/kg in the liver) had increased from 15.1 % to 42.3 %.
- The mean level of SGAR in the liver had increased 230 %.
- It is clear that this increase in SGAR exposure in buzzards was due to a substantial rise in exposure of the birds to the highly toxic Brodifacoum, likely to be the result of the Government’s decision to permit the outdoor use of this highly toxic poison. Exposure to this high toxicity poison has increased by 1,026 %!
Commenting on the poison levels found in these eagles, Dr Ed Blane from WPRUK said:
“The death of these majestic birds in Dorset, and the high amounts of poison found in their livers, should cause alarm bells to start ringing across the country. What we see now is the total failure of Government approved policy meant to protect the environment, information being withheld and our wildlife paying the price. At the same time chemical companies are making profits from selling these poisons. We have Channel 4’s ‘Dirty Business’ meeting Rachel Carson’s ‘Silent Spring’!
“What is of particular concern are the plans to introduce eagles to other areas of England and Wales without addressing this growing poisoning issue. How many of these birds will suffer a similar fate as the Dorset eagles?“.
ENDS
Raptor Persecution UK 