The BirdWatch packs contain counting sheets with all the most popular garden birds pictured on it, but you can also add in any other birds you see too. When you've finished you can upload your results to the RSPB website, or post the form back to them to be included in the full count. You should put a zero next to any birds listed but that you didn't see as this is also very important to know.
This year's BirdWatch takes place between 26th and 28th January. If you want to join in you can visit the RSPB website at www.rspb.org.uk/birdwatch to download a free pack which gives you lots of information and explains exactly what to do.