The attached is the text of an article which was published in British
Wildlife magazine Volume 11, Number 2, pages 108-117. If you would like
to see the version with colour photos of some of the species mentioned
then you will need to contact the editor for a back issue: Andrew
Branson, Editor, British Wildlife, Lower Barn, Rooks Farm, Rotherwick,
Hook, Hampshire RG27 9BG, or e-mail brit.wildlife@....
Keith