The start of the grouse season - nicknamed the Glorious 12th - was delayed until August 13 because game shooting on Sundays is illegal.
This year is also the last before the EU bans a chemical to control bracken. Campaigners say the ban will devastate the countryside.
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Emma Jesson brings you Sunday night's forecast
Cold and clear with widespread frost on Sunday night. Sunny Monday then showers
A number of Britons are feared stranded on Mount Everest after the Nepal earthquake triggered a deadly avalanche on Saturday.