The Scottish crossbill is at risk of extinction because the climate is unsuitable, new research has indicated. It is the only British bird species that is found nowhere else in the world.

In Britain we have the common crossbill and the Scottish crossbill. Whether these are separate species or the same species, the argument continues.

It has also been planting new trees after raising £200,000 in donations. Black grouse, Scottish crossbills, crested tits and golden eagles are among the reserve's bird species. RSPB Scotland said ...