Roger Evans has been an articulate dairy and poultry farmer all his life. From his Shropshire farm, he writes his diary in a well-informed, realistic and funny way, covering all aspects of his life as a farmer today.    In this book Roger talks about ratting, a particular cheeky robin, Gomer's latest weight problem and the challenges of being a dairy farmer during a national crisis.    But in the countryside the good things still prevail: the local pub, the burgeoning hedgerows, tenacious wildlife, ingenious farm dogs and let's not forget Roger's plastic swans.