The Big Garden Birdwatch returns

The world's largest garden wildlife survey returns today and runs until Sunday. The Big Garden Birdwatch involves people birdwatching in their garden and counting the number of different species they see for one hour. The BBC's Climate Editor Justin Rowlatt reported from Sherwood Forest where he spoke to Becky Speight, Chief Executive of the RSPB. Also featuring Simon Jack. (Image Credit: Press Association)