InvisiBird

InvisiBird is going to appear in a new game in early 2013. He is an additional member of The Altered Flock.

Powers And Abilities
He does not have an activated ability, but his powers are activated automatically. He can go through any material and hit a pig. Pigs are the only things InvisiBird can hit, which makes him a good bird if you want to exterminate pigs really quickly, as long as you point him right in the pigs' face.

Appearance
He has an invisible body, so he is simply a smiling floating beak with eyes on the top.