The 28 year old is entering the final year of his contract. He made 42 appearances last season scoring nine goals.
With Cardiff reportedly interested in signing Welsh international winger David Cotterill from Birmingham the conspirisists might be thinking it's good business to get a fee for Pilkington and get him off the wage bill with Cotterill a cheaper option to replace him.
City boss Paul Trollope has spent the last month in France with the Welsh squad so will have had time enough to chat with any prospective signings from within the Welsh camp.
All speculation at the moment.