Mutant Cockatiel is one of the mutants created by Dr. Animo in the episode Washington B.C..
Ben 10
When Dr. Animo attacked a supermarket in Washington DC, with his Mutant Frog, he mutated this bird and a hamster. Its appearance and size change where it becomes a giant cockatiel that Dr. Animo uses to kidnap Gwen, but she is later saved by Stinkfly.
When Dr. Animo is the Museum, where he revives a Tyrannosaurus and a Mammoth, Gwen fights with the cockatiel. Once the Trans-modulator was destroyed, the cockatiel returned to normal.
Trivia
- It appears in the opening of Ben 10 (Seasons 1 and 2).