English paperback book flexible way newest square format (2006) dedicated to the European avifauna; After thirty pages of introduction and generalities, author, famous English ornithologist, describes 170 species by granting each of them is a full page or for some very common double page illustrated with a three color and high color distribution map photos; this little tutorial will satisfy most beginners or more experienced bird enthusiasts; it will be mainly for their library more than field (in this case we prefer a more compact and comprehensive identification guide)