Chickonda

The Chickonda (originally named the Tyrannacuna) made an appearance in the double part episode, Voice Fail. It hatched from the egg formed by the romantic union of Big Chickuna and Tyrannaconda

Trivia

 * The Chickonda also resembles the occamy, a kind of bird/snake hybrid from Harry Potter, and maybe the possible concept for the franchise in the DreamWorks Animation adaption.