GOLDEN eagles and other protected birds of prey are being illegally slaughtered in what amounts to "serious organised crime", a leading expert has said.

Dr Ruth Tingay of Raptor Persecution UK said birds are being killed on or near grouse moors across Scotland before the evidence is then removed to avoid prosecution. 

She spoke out during a fringe meeting at the Scottish Labour conference in Dundee.

Claudia Beamish MSP, the party's environment spokeswoman, said it backed strict new rules for estate owners – including a total ban on the use of lead shot and the large-scale cull of mountain hares.

She said: "In order for grouse moors to continue, if indeed they do, there needs to be very robust licensing."

Labour delegates heard grouse moors cover almost a fifth of Scotland, with estates handed more than £300,000 a year in public subsidies.

Revive, a coalition of organisations calling for change, insisted estates should be stripped of this cash as part of a crackdown aimed at encouraging radical land reform.

It said the intensive land management associated with driven grouse shooting causes environmental damage.

Meanwhile, there is evidence scores of birds have been illegally killed on or near estates, it said.

Dr Tingay, a leading raptor ecologist, said: "My argument is that what we are seeing here – not just with golden eagles but with other birds of prey, particularly hen harriers, which are also persecuted on driven grouse moors – is serious organised crime.

"If the Government accepted this, we would see a lot more resources coming in to deal with this issue."

She said some estimates suggest 50 eagles a year are disappearing.

Revive is made up of Raptor Persecution UK, Friends of the Earth Scotland, animal charity Onekind, the League Against Cruel Sports Scotland and think tank Common Weal.

Craig Dalzell, head of policy and research at Common Weal, said estates should be opened up to other uses. 

He said grouse moors in Scotland had an annual economic impact of £32 million and were responsible for around 2,640 jobs. 

In comparison, forestry boasts an annual economic impact of £973m and creates 26,000 jobs, he said.