Britain's landscape is undergoing an extraordinary transformation. Awaking from the winter slumber. As the days get longer and warmer, we're all trying to spring back to life. A day of spring is a lifetime for some and the beginning of life for others. Survival is down to one simple thing - timing. In this Spring Special edition of Countryfile, the team follow twenty four hours of this glorious season. Ellie Harrison is up with the larks listening out for the dawn chorus as native birds are lured back to our shores by the promise of warmer weather. Now though what they're after is a mate. And they're not alone. Millions of wild creatures are settling down to breed. Out on the Somerset Levels, Matt Baker is in pursuit of one of our largest breeds of bird - the crane - recently returned home after disappearing from our wetlands. He tracks them down as they get themselves ready for breeding. As the spring day unfolds, the team witness some of the miracles that emerge. John Craven finds the beauty in blossom that will become fruitful later in the year. They see the rise of the midday mayflies to dusk, when whole communities come together to celebrate the season at Padstow's Obby Oss festival. But none of this would be possible without our weather. Adam Henson goes on a voyage of discovery with weatherman John Hammond to find out the secrets behind April showers.