The sixth fence in all races will be omitted at Sedgefield in County Durham on May 14th because of nesting ducks.
The British Horseracing Authority listings state: 'Fence 6 (Roadside) will also be omitted in all Chases due to ducks nesting.'
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The proposals have prompted protests by local residents.
In the early hours of Sunday morning a 33-year-old man was stabbed outside Lloyds bank at Haymarket Metro Station.
The Great North Air ambulance were called to the scene in Seaham to take the children to the James Cook University hospital.