Many pilgrims and refugees, often called "sparrows", took up the badges and arms of Poor Fellows to protect themselves and other homeless victims of the war.
Uma wiki de Ice and Fire também tem um artigo sobre os Sparrows baseado nas interações de Brienne com homens santos em AFFC:
During the War of the Five Kings, septs were despoiled and men and women sworn to the Faith were killed, mutilated and injured. From this holy men and those they collected on the way marched on King's Landing bringing the bones of those Faith sworn men and women who had been slain to lay before the king and plead for protection. They took the name 'sparrow' because the sparrow is the most common bird and those that marched were the most common of those sworn to the Faith.