The RSPB’s Big Garden Birdwatch is set to bring more than half-a-million people together this weekend (27, 28, 29 January) as they uncover what is happening in their garden, helping to create an annual snapshot of how UK birds are doing. Now in its 39th year, the Birdwatch is a chance for people of all ages to count the number of birds that visit their garden to help the RSPB build up a picture...