5 December 2017
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.
Other species are moving further north as temperatures rise and habitats change, according to an RSPB report.
The State of the UK's Birds 2017 highlights the average summer temperature is nearly 1C higher than in the 1980s.
The Scottish crossbill is found in the pine forests of the Highlands.
Numbers have also declined among dotterel, whimbrel, common scoter and snow bunting populations.
Slavonian grebe numbers have also been hit due to periods of very heavy rainfall during breeding season.
Dr David Douglas, Principal Conservation Scientist at RSPB Scotland, said: "Many birds in Scotland are being affected by a changing climate.