The Government of Canada was becoming increasingly worried about the effect on morale if Bishop were to be killed, so on 18 June he was ordered to return to England to help organize the new Canadian Flying Corps. Bishop was not pleased with the order coming so soon after his return to France. He wrote to his wife: "This is ever so annoying." The order specified that he was to leave France by noon on 19 June. On that morning, Bishop decided to fly one last solo patrol. In just 15 minutes of combat, he added another five victories to his total. He claimed to have downed two Pfalz D.IIIa scout planes, caused another two to collide with each other, and shot down a German reconnaissance aircraft.