Macaroni Penguin (Eudyptes chrysolophus)

Macaroni penguins are one of six penguin species that bare a crest of yellow feathers on their heads. They are the most abundant species of penguin with colonies that can contain up to 100,000 individuals. With their large numbers and impressive appetites, they consume more food than any other sea bird - their diet including mostly krill, squid, and small fish. They are especially active feeders during their breeding season when the large colonies come together and need to feed their young. Within the colony Macaronis are relatively safe amongst the masses; however, the long journey to and time spent at the foraging grounds proves to be much more dangerous as they often fall prey to leopard seals and orcas. They protect their eggs very well, usually having one parent stay back as the other forages. Unfortunately, an egg left unattended for any amount of time is an easy meal for the flight-enabled Antarctic birds like petrels. It is not entirely certain what purpose their eyebrow-like crest serves, but it is likely a way of attracting mates.