Three swans have been found dead inside plastic bags on the River Dee in Aberdeen.
A member of the public spotted a bag on the river near Robert Gordon University last month.
Two more bags were found by Police Scotland on March 3, around 100m from Morrison’s Bridge, also known as the Shakkin Briggie, near Cults.
Two of the swans had been shot, with two “missing flesh”.
In a graphic image released by the SSCPA, one animal appears to have been gutted.
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Scottish SPCA inspector Watson said, “These three swans were found dead in a close proximity to each other.
“Due to the circumstances, we believe that the same person is responsible for the deaths of all three birds.
“We would like to find out who this is and the reason the swans ended up in this state.
“Two had gunshot wounds and two had flesh missing which may have been used for meat.
“If anyone in the area has any information, we would urge you to call our confidential animal helpline on 03000 999 999.”
Swans are a protected bird under the Wildlife and Countryside Act 1981 and anyone found guilty of harming or killing a swan can expect to be subject to a criminal investigation.