Vugri was a RavenWyte under the command of Korvus Skurr. He was sent with other RavenWytes to investigate the location of Baliss the Slayer. Upon discovering the adder and noticing he appeared dead, Frang and Vugri flew in closer to see if this was the case.
Unfortunately for Vugri, Baliss captured him in his jaws, breaking one of the birds wings, and forced the raven to lead him to the Doomwyte lair. It is not known what happened to Vugri after that, but it can be assumed he was probably killed by Baliss.