The newly released results of the 2010 hen harrier survey have revealed a 20 per cent decline in the bird’s UK population in the last six years.
One of the few places the hen harrier, one of the UK’s most spectacular birds of prey, breeds is in the Forest of Bowland, but a recent review has shown the bird is also the species most affected by illegal persecution.
The Hen Harrier Framework concluded that illegal killing is the biggest single factor affecting the species, and that it is having a dramatic impact on the population in core parts of the hen harrier’s range in northern England and Scotland.
The latest results complement the findings of a 2008 survey which found that only five pairs of hen harriers nested successfully on high-intensity ‘driven’ grouse moors in Scotland and England, despite the fact that sufficient habitat exists for 500 pairs.
The 2010 hen harrier survey recorded an estimated 646 pairs of hen harrier nesting in the UK and the Isle of Man. This is down from an estimated 806 pairs in 2004.
Dr Mark Avery is the RSPB’s Director of Conservation. He said: “The hen harrier is one of our most wonderful birds of prey, but it also the species most threatened by illegal persecution. Every year hen harriers are targeted on grouse moors across the UK and it is clear that this onslaught is having a significant impact on our population. We believe that gamekeepers are killing them illegally – under pressure from their land-owning masters.
“The 2010 hen harrier survey backs up the findings of the government-commissioned hen harrier framework, which reported that persecution was the principal factor limiting this bird of prey’s UK population.
“Last year over 210,000 people signed up to our bird of prey campaign demanding an end to the illegal killing of birds of prey. With such a strong voice demanding change, it is deplorable that some within the grouse moor community continue to break the law and deny people the chance to see such a magnificent bird.”
With almost 500 pairs, Scotland has the vast majority of the UK hen harrier population. But here the decline has been even greater, falling over 21 per cent from an estimated 633 pairs in 2004.
The survey recorded little change in England as the population rose from 11 pairs in 2004 to 12 last year. Estimates suggest there is potential for at least 323 pairs of hen harrier in England, so a dozen pairs represents less than four per cent of the potential, with illegal persecution being blamed for this huge difference. The hen harrier remains on the verge of extinction as a breeding species in England.
In Scotland, the Wildlife and Natural Environment Bill, which is currently being debated, provides a great opportunity to take new steps to try and help save hen harriers. One option being looked at is making landowners legally responsible for the actions of their gamekeepers.
Last week the meeting of the Partnership for Action against Wildlife Crime meeting was addressed by Richard Benyon, Minister for the Natural Environment and Fisheries.
Dr Mark Avery added: “We trust that the minister will agree with us that these results show that it’s time to take decisive action in the struggle to protect threatened birds of prey.
“Although more than 70 per cent of people convicted of bird of prey persecution in the last 20 years have been gamekeepers, in reality its often landowners who effectively force their employees to break the law. We believe that making landowners legally accountable for bird of prey crimes in Scotland and England is a vital step in the road to reducing persecution.”
Wales, where there are no grouse moors and very little recorded persecution of harriers, recorded a substantial increase, rising from 43 pairs in 2004 to 57 last year.
Paul Irving, of the North England Raptor Forum, said: “As ever we are utterly appalled at the continuing tiny proportion of the potential harrier population found on moorland managed for grouse shooting. We believe this not only shows an utter contempt for this wonderful bird, but also it shows complete disregard for the law by game managers. That we have so far failed to change this reflects badly on us all.’’
The 2010 hen harrier survey was funded by RSPB, Scottish Natural Heritage, Natural England and the Countryside Council for Wales. Additional support was provided by NIEA and many members of bird of prey study groups.