When spent a couple of hours at the Adelie penguin rookery on Ross Island in Antarctica and were able to observe all kinds of behavior–parading along single file from one end of the beach to the other, emerging from the water after feeding on fish, chicks waiting patiently for their parents to arrive with food, and adults being chased before finally feeding their chicks. Quite amusing.

The ones with white bellies have just come out of the water; those with dark bellies have been lying in penguin poo.

Video at http://www.flickr.com/photos/11790404@N02/13050744675/

David