The Big Garden Birdwatch is the world's biggest bird survey, providing the RSPB with a vital snapshot of the UK's birds each winter. All you need to do is watch your garden or local park for an hour on either Saturday 24 or Sunday 25 January 2009. Simply record the highest number of each species seen in your garden (not flying over) at any one time. Find out more at www.rspb.org.uk