The penguins may all look very similar, but each penguin has a distinct personality and character and they are well known to their keepers who use different coloured flipper bands to help tell them apart - male penguins have bands on their right flipper, and females on the left. Notable individuals include Snowflake, who is leucistic (pale colouration of skin and feathers), and Kevin, who has been banned from Penguin Parade for bad behaviour !
Gentoo penguins are the third largest penguin species. Unlike certain other penguin species, in the wild, gentoos do not have a yearly migration cycle. Gentoo Penguins are normally found on the shorelines of the Antarctic peninsular and on many sub-Antarctic islands. Gentoo penguins are monogamous during the breeding season, in that they stay with one partner - and some bonds can last for life.
Additional Information:
Oceanwide
Animal Diversity Web