Which bird's call sounds like a bored football fan chanting United, United, United - and is one of the newest arrivals in the UK to feature in the Big Garden Birdwatch top ten? This edition of Nature's Voice will have the answer to that. Plus Jane Markham talks to RSPB staff in England, Scotland, Ireland and Wales on the look out for regional variations and interests when it comes to this year's count. These range from the flashy goldfinch to the chubby nuthatch.