Kieran is a black version of Chuckmeister, and is a member of the Custom Angry Birds. He has black plumage and a piggy green belly. Kieran is desperate, determined, and observing. Kieran looks sad when he's angry. He likes to watch animated videos, that's why he is in charge of screenplay and observes the film and checks for errors. Kieran is just so desperate to accomplish things (mostly in his mind) and is determined to. He can burn things with scary black fire.
Known Aliases: Determined Bird, Black Cousin Yellow Bird, Observer Bird
Anger Level: Testy
What makes him angry: Failing to accomplish things, and pigs
Powers: Throwing black fire, which will haunt and burn things
Hobbies: Observing animated works
Best friends: Chuckmeister, Robert, Velvet, and Trevor
Favorite Holiday: New Year's Day