With my crew it's hard to say which is predominate but I had to say the "ROOO ROO". The various pitches of the Rooo makes it easy to tell who's making the noise. Collar[flower] likes to sing, so hers is more of a Row Row Row .. so I follow that with "... your boat.." Badger has the deepest voice. Thunder is more shrill when he's not sure of who's at the door. Punk just talks and actually moves his dear little lips but it's still sort of a Roo Rooo