These penguins are in heavy molt. Two subspecies usually recognized. These Falkland breeding birds are the nominate race while those breeding in Kerguelen Islands and subantarctic New Zealand islands are E. c. filholi characterized by distinctive fleshy-pink, not black margins to bill. This species was formerly lumped with Moseley's Rockhopper Penguin from which it is distinguished by its much shorter, straighter head plumes. The breeding population on the Falklands has declined by 90% over the last 60 years. Oil exploitation, commercial fisheries, climate change introduced predators, and human disturbance have been blamed but the true causes of the decline of this vulnerable species remains uncertain. Canon PowerShot SX50 HS
References:
Martínez, I., Christie, D.A., Jutglar, F., Garcia, E.F.J. & Kirwan, G.M. (2018). Southern Rockhopper Penguin (Eudyptes chrysocome). 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/52464 on 7 May 2018).
Shirihai, H. (2002) A Complete Guide to Antarctic Wildlife. The Birds and Marine Mammals of the Antarctic Continent and the Southern Ocean. Princeton University Press: Princeton & Oxford.