Climbing trees, playing conkers and making daisy chains - the simple outdoor pleasures of being a child. But these are becoming a thing of the past according to Every Child Outdoors, newly published research by the RSPB.  In this edition of Nature's Voice Jane Markham visits out of classroom learning sessions at RSPB reserves and  talks to children and field teachers to find out why contact with nature is so important, and why the RSPB is committed to ensuring that as many children as possible continue to have access to it.