The Scottish SPCA is appealing for information following a “bizarre spate of incidents” where pigeons were found tied up in Glasgow’s Southside.
The animal welfare charity said there have been several reports in the area since April this year and Police Scotland has been notified.
The Scottish SPCA was alerted to the latest incident on 3 September after a member of the public discovered a bird near Calder Street.
It was found with thread wrapped tightly around its legs, which cut off circulation. The bird had to be put to sleep.
The caller reported that they had also found three other pigeons tied to a fence in nearby Allison Street, which they had managed to free.
Lesley Boyce, Scottish SPCA acting chief inspector, said: “We’ve had several calls regarding pigeons found in similar circumstances in the area, beginning in April of this year.
“When our animal rescue officer attended this incident, the pigeon had black thread wrapped around their legs.
“Sadly, the thread was wound so tightly that it had cut off circulation to the pigeon’s legs and the bird had to be put to sleep to prevent further suffering.”
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Ms Boyce added: “We would like to remind the public that it is an offence to deliberately harm or kill an animal.”