Anglers have been banned from using a certain type of fishing tackle at a Nottinghamshire nature reserve, after a swan was killed by a fishing hook.
The swan is the 12th bird to have died at the reserve in the past year
The ban has been brought in at the Attenborough Nature Reserve, after the mute swan was found with a large multiple hook caught in its neck.
The swan is the 12th bird found dead at the reserve in the past year.
People who fish for pike are being asked to take more care with fishing lures and "spinners" tackle.
Artificial lures and spinners - a type of multiple hook - are popular with anglers who fish for larger species but can be very dangerous for birds living in or near the water.
At first, representatives from the Wildlife Trust thought the swan might have been a victim of the H5N1 strain of bird flu.
But they said as soon as they reached the bird, it was clear that it had become entangled in a long length of fishing line with a fishing lure and had a hook stuck in its neck.
Charles Langtree, head of estate management and development for Nottinghamshire Wildlife Trust, said: "This incident was very distressing for everyone involved and we are saddened by the needless death of such a graceful creature."
The Nottingham Anglers Association said its committee had taken the unanimous decision to ban the use of all artificial lures and "spinners" on the whole of the Attenborough gravel pit complex in order to protect habitat and wildlife there and to prevent further injuries.