Britain's wildlife is being pushed to "the brink of a crisis" as sub-zero temperatures continue to grip the nation, according to conservationists.
The Royal Society for the Protection of Birds (RSPB) is organising emergency feeding of several threatened species, including bitterns and cirl buntings.
The RSPB is also asking people to feed garden birds, which are struggling to find food in the freezing weather.
The harsh winter could hit bird numbers "for many years to come", they warn.
The UK's Met Office recorded the winter's coldest day on Friday, when temperatures plunged to -22.3C (-8.1F) in Scotland's Highlands.
Click source for more