Captured Changewing

The Captured Changewing is a Changewing that was captured by the Outcasts during their attempts to train dragons.

Captured by the Outcasts
At some point before the events of We Are Family, Part 2, this Changewing was captured by the Outcasts. It was then placed in the dragon cages on Outcast Island. The training was hampered by the Changewing continuously using its color changing abilities to blend into the cave wall, forcing the Outcasts to enter the cave to check up on it and allowing the Changewing to blast acid at them.

When Hiccup was captured by Alvin the Treacherous and brought to Outcast Island, he was forced to aid the Outcasts in their dragon training. Upon noticing two Outcast soldiers entering a cave that appeared to not hold a dragon, Hiccup stated that the dragon had not disappeared, but was actually a color-changing Changewing. At this moment, the Changewing revealed itself and attempted to shoot acid at the Outcasts. Despite Hiccup being forced to give advice to the Outcasts on how to deal with the other captured dragons, it is unclear if or how the Outcasts changed their attempts to train this Changewing.

Later on, after Hiccup had managed to escape, with the "aid" of Mildew, and trained Flystorm, he returned to the dragon cages in an attempt to rescue Toothless. However, Alvin was prepared for them, releasing the Changewing, along with Groundsplitter and a Captured Scauldron, to attack Hiccup, Mildew, and Flystorm. After successfully managing to avoid the attacks of all three dragons, including the Changewing's disappearing and acid blasts, the three dragons became tangled up in each other, allowing Hiccup, Mildew, and Flystorm to escape.

Physical Appearance
The Captured Changewing is representative of its species. It is red in color with orange edges on its wings.