Near the beginning of Loamhedge, when Baddred takes over the small gang of vermin, mention is made of the two archers, Rogg and Floggo. They are stated to be weasel brothers, and it is implied that they are the only two archers in the band. However, during the siege of Redwall Abbey, when Baddred steps aside to allow one of the archers to shoot at the Abbot, the book says that the ferret archer stepped foward. Are the brothers weasels or ferrets?