A group of boys as young as 11 have been spotted torturing and killing birds with catapults.
The teenagers were spotted targeting the helpless birds along the River Medway in Maidstone, Kent.
They were spotted firing at a duck before kicking it and then throwing it against a wall.
Photos from the scene afterwards show a lifeless duck floating in the water, and a dead pigeon was found nearby.
Witness Gemma...