British gardens are a vital habitat for birds, and many species depend on birdfeeders to sustain their populations during the cold winter months. Some once common garden birds, such as house sparrows, starlings and song thrushes, have shown worrying and unexplained declines in recent years.
Visit
www.rspb.org.uk/birdwatch/ to find out more about the RSPB's annual Big Garden Birdwatch, which has been collecting vital data on British garden birds since 1979.