Ulgo Ulgo , who claimed to hold the title King Ulgo the Magnificent , was a male Dulok from the forest moon of Endor , where he lived in a cave near the Canyons of Mist . There he was confronted by a group of Ewoks from Bright Tree Village , who had been misled by another Dulok named Vulgarr to believe a monster lived in Ulgo ' s home . When the Ewoks rescued a group of lantern birds that Ulgo planned to eat , he attempted to attack them but fell to his death in the ensuing struggle . Biography . The male Dulok Ulgo lived on the forest moon of the planet Endor , homeworld of his species . He claimed to be king of all Duloks , but lived alone near the Canyons of Mist in a cave high in the canyon walls near the Whispering River . There , he set snares made from stranglevine to capture lantern birds , which he both ate and used as a light source within his dark cave . Ulgo at one point interacted with Vulgarr , another Dulok who claimed the title of king , and traded him a pair of lantern birds in exchange for a vest made from the furs of Ewoks , another sentient species who called the moon home . Vulgarr later made plans to capture the Wokling s of an Ewok settlement named Bright Tree Village , and in order to draw the village ' s warriors away first captured a single wokling named Malani . Vulgarr then visited the Ewoks and claimed a great monster had taken the child , directing them to Ulgo ' s home , which he claimed was the monster ' s lair . The warriors of Bright Tree Village followed the Whispering River to Ulgo ' s home using gliders , where Ulgo confronted them and order them to leave his land . The warriors ' leader , Chief Chirpa , explained that Vulgarr had misled them , causing Ulgo to show off the Ewok fur vest the other king had traded him . This upset the Ewoks , especially the warrior Pondo , who attempted to attack the Dulok before being constrained by his colleagues . Ulgo reacted to the attempted attack by threatening the Ewoks , who made to leave . Before departing , however , Warok , the father of Malani , took the caged lantern birds Ulgo was carrying and informed him that the creatures were servants of the Great Spirit of the forest and must be set free . Enraged at losing his breakfast , Ulgo lunged at the Ewok , who side stepped the attack and accidentally knocked the Dulok with his glider , sending the king tumbling off a cliff into the canyon below . At first the Ewoks believed Ulgo would survive the fall by landing in deep water , but a strong gust of wind changed the falling Dulok ' s path and caused him to land on a large flat rock , which killed him . Chirpa then whispered an oath for Ulgo , as the Ewoks did for any forest creature who died . Personality and traits . Ulgo lived alone in the Canyons of Mists , but nevertheless , claimed to be king of all Duloks . He considered Vulgarr , another Dulok king , to be a fool because he was willing to trade a fine Ewok fur vest for two lantern birds . When angered by the warrior of Bright Tree Village , the Dulok hissed and spit at them , threatening to use their fur to make foot wipes . An elderly , bent and wizened Dulok , Ulgo had mangy fur and spoke in a deep , growling voice . Equipment . At the time of his meeting with the warriors of Bright Tree Village , Ulgo carried a long - handled flint axe and wore a fine Ewok fur vest . He used a small portable wooden cage to contain captured lantern birds , which he used as a light source . Behind the scenes . Ulgo was created for the children ' s novel " " , which was written by Joe Johnston and released in 1984 .