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There's not a corner of the British Isles that doesn't warm to the arrival of spring. It's a season of renewal, regrowth and regeneration. Every day this week, John Craven and the Countryfile Spring Diaries team - Keeley Donovan, Jules Hudson and Margherita Taylor - are unveiling the secrets of this extraordinary season.

After the dark days of winter, spring is nature's alarm call to bring everything back to life. It seems to come round like clockwork, but is that really so? John and Keeley investigate what makes our springtime weather so special.

In the New Forest, there's a sense of anticipation in the air as its most famous residents prepare to give birth - Jules takes to the saddle to find out why spring is such a crucial time for the New Forest ponies.

Few things on the forager's calendar are more sensationally seasonal than the sap of the silver birch. The window to tap into this elusive liquor lasts just a couple of weeks. Margherita reports on the best way to turn to the trees for a springtime pick-me-up.

And each day Paul Martin breathes new life into his Victorian smallholding in Wiltshire. His spring diary starts with a hunt for the perfect breed of sheep to help restore his fields.