"The problem of fly-grazing - the problem of horses on common land - is an enormous problem" says the RSPCA's Gethin Russell-Jones.
"Our RSPCA inspectors are involved daily in recovering horses, dealing with complaints".
"There must be hundreds and hundreds of horses scattered across South Wales at the moment".
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It's judgement day at the Millennium Stadium as Cardiff Blues take on the Ospreys and the Newport Gwent Dragons face the Scarlets.
Showers expected throughout the day especially in the north. Drier and brighter elsewhere but cooler than in recent days.
Most places will become dry overnight, although it will remain generally cloudy with patches of hill fog.