I am saddened that once again only some owners and managers of sporting estates have condemned this illegal activity

Stuart Housden, Director of RSPB Scotland

Senior investigations officer for the RSPB Scotland, Dave Dick, said this year had been "disastrous" for the birds.

"There is no question that these crimes have been particularly targeted at golden eagles," said Mr Dick.

"Golden eagles are a Scottish icon and it is a disgrace that crimes like this are still being committed across Scotland.

"These three birds were all found poisoned in areas traditionally good for golden eagles.

"Sadly a large majority of poisoning incidents take place on sporting estates - too many for pure coincidence.

"The only reason why there are not more golden eagles in Scotland is because of persecution."

Tougher measures

Mr Dick said it was likely the eagles were poisoned as they were suspected of feeding on rabbits, lambs and other birds of prey.

The death toll has led Stuart Housden, director of the RSPB Scotland, to call on estate managers to ensure birds are not targeted in the future.

Environment Minister Sam Galbraith wants tougher measures

He said: "I am saddened that once again only some owners and managers of sporting estates have condemned this illegal activity."

The three poisoned birds were found in the Perthshire Hills, Sutherland and in the south of the Monadhliadh Mountains.

Golden eagles are protected by the Wildlife and Countryside Act 1981.

Environment Minister Sam Galbraith said recently the Scottish Executive would publish a policy statement on wildlife law reform.

This is likely to contain proposals for tougher measures to deter and punish wildlife criminals, including the prospect of prison sentences for habitual offenders.