A mother swan has been shot in the head 14 times in an airgun attack at a pond in Livingston, West Lothian.
The adult female, known locally as Edna, is being treated by vets along with her mate, Eck, who was also severely injured at Dedridge Pond.
Their cygnet was uninjured however their other cygnet was found dead two weeks ago.
The Scottish SPCA is caring for the family of swans following the incident on Monday.
They are being treated at the charity's wildlife rescue centre at Middlebank near Dunfermline, Fife.
Connie O'Neill, of the Scottish SPCA, said: "This was a deliberate and cruel attack on a family of defenceless swans.
"Edna, her mate and her remaining cygnet are being made comfortable and receiving all the care and attention they require but the next two days will be crucial.
"We really hope they pull through for their sake and also for the local community group who have shown such consideration and concern for their welfare."
According to the local Dedridge Environment and Ecology Project, Edna has lived at Dedridge pond in Livingston for more than 16 years and has bred successfully over the years.
Her previous mate died, but her current mate joined her two years ago.
A £1,000 reward has been offered by an anonymous donor for information leading to a conviction.