Hints： King Penguin duet grime

The male usually leads. If the female is sufficiently impressed, the pair seal their relationship with a vocal duet.
King Penguin rookeries are very busy places. Every morning at about 6:00, the adults leave their chicks, cross the glacier stream and march down to the sea. They like to take an early morning bath, getting rid of the smelly mud and grime of the crowded colony. For an hour or so, they wash in the surf.

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