There are four of them!!

[Mordac]

So there are 4 types of the smelly b*stards. I had the unfortune to come across them on Saunders Island whilst cycling to see the elephant seals. They are disgusting, the true slum dwellers of the penguin world. They live on big mounds of tulip whilst tulipting on each other and pinching each others nest twigs. There's a reason the nearby king penguins have their noses in the air. Now rock hoppers are cool, we were lucky enough to see them coming in and shooting out of the waves onto the rocks, breathtaking.

They can't be smellier than sea-lions. Nothing can. I've only ever seen wild penguins in South Africa, I don't know which species they were, but they were very cute.
I don't think penguins should be shaken up though. That would be unnecessary...