Pirahnas

Pirahnas are recurring fish animals in the Angry Birds series.

Appearance
They are small fish with teeth, a reddish belly and gray or blue complexion. They also have often large fins and their eyes are yellow.

Angry Birds Evolution
They appear jumping in the river when Capt'n Thrush launches it into pigs, they damage the pigs each turn.

Angry Birds Friends
They appear in Operation: Eagle Island Tournament and Happy Hog Heaven Tournament where they can be collected for points. There's also the golden version, that gives 5000 points when collected.

The Angry Birds Movie 2
Zeta tries to eat one but a seal steals it, eating it and then leaving.