This is a juvenile quite out of place in the midst of a large King Penguin colony. Note the head plumes are pale and much reduced, not meeting at the forehead. This species is classified as "vulnerable" by IUCN because of recent severe declines. However, they are still considered common on South Georgia which has the world's largest population of these penguins. Canon PowerShot SX50 HS.
References:
BirdLife International. 2017. Eudyptes chrysolophus (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T22697793A110669422. http://dx.doi.org/10.2305/IUCN.UK.2017-1.RLTS.T22697793A110669422.en. Downloaded on 08 June 2018.
Martínez, I., Christie, D.A. & Jutglar, F. (2018). Macaroni Penguin (Eudyptes chrysolophus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/52466 on 8 June 2018).