Cow Wood and Harry's Wood is a biological Site of Special Scientific Interest east of Handcross in West Sussex. it is in the High Weald Area of Outstanding Natural Beauty.
This area of ancient semi-natural woodland is crossed by ghylls, streams in steep valleys which have a warm and moist microclimate. Forty-seven species of breeding birds have been recorded, including wood warbler, willow tit, hawfinch and lesser spotted woodpecker.
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