Several hybrid penguins have been reported.


  • Rockhopper Penguin (E. chrysocome) x Erect-crested Penguin (E. sclateri) – Naupier (1968)
  • Rockhopper Penguin (E. chrysocome) x Royal Penguin (E. schlegeli) – Simpson (1985)
  • Rockhopper Penguin (E. chrysocome) x Macaroni Penguin (E. chrysolophus) – Woehler & Gilbert (1990), White & Clausen (2002)


A genetic study reported gene flow between the Northern Rockhopper Penguin (E. moseleyi) and the Southern Rockhopper Penguin (E. chrysocome), and between two subspecies (chrysocome and filholi) of the Southern Rockhopper Pengion (Mays et al., 2019).



Hybrid Penguin

Hybrid Macaroni (E. chrysolophus) X Rockhopper Penguin (E. chrysocome)



Mays Jr, H. L. et al. (2019). Phylogeography, Population Structure, and Species Delimitation in Rockhopper Penguins (Eudyptes chrysocome and Eudyptes moseleyi). Journal of Heredity110(7), 801-817.

Napier, R. (1968). Erect-crested and Rockhopper Penguins interbreeding in the Falkland Islands. British Antarctic Survey Bulletin 16, 71-72.

Simeone, A., Hiriart–Bertrand, L., Reyes-Arriagada, R., Halpern, M., Dubach, J., Wallace, R., Putz, K. & Luthi, B. (2009). Heterospecific Pairing and Hybridization between Wild Humboldt and Magellanic Penguins in Southern Chile. Condor 111, 544-550.

Simpson, K. N. G. (1985). A Rockhopper x Royal Penguin hybrid from Macquarie Island. Australian Bird Watcher 11, 35-45.

White, R. W. & Clausen, A. P. (2002). Rockhopper Eudyptes chrysocome chrysocome x Macaroni E. chrysolophus penguin hybrids apparently breeding in the Falkland Islands. Marine Ornithology 30, 40-42.

Woehler, E. J. & Gilbert, C. A. (1990). Hybrid rockhopper-macaroni penguins, interbreeding and mixed species pairs at Heard and Marion Islands. Emu 90, 198-201.

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