Snapper is a one-time character from The Mask: The Animated Series season 2 episode, Mutiny of the Bounty Hunters. He is Francis and Baby Forthwright's pet parrot whom Stanley was made to take care of along with Baby Forthwright during his one-time appearance.
During the episode, Snapper got lose from his cage and flew free into Edge City making Stanley come after him. Later, Baby Forthwright got lose also, causing Stanley to use The Mask to find them both.