Confined to southern South America and the Falklands, this species is superficially similar to the American Oystercatcher (H. palliatus). However Magellanic Oystercatcher has blacker upperparts, slimmer bill and more white in its wings. Like other New World species, its iris is yellow in adults, but it is unique in also having a yellow eyering. This eyering shows prominently against the dark eye of immatures.Adults have a bright red bill while immatures have shorter, more dusky colored bill, and drab feet and legs in addition to the dark iris. It is believed that this species is probably ancestral to other oystercatcher species. Canon PowerShot SX50 HS
References:
Hockey, P. & Kirwan, G.M. (2018). Magellanic Oystercatcher (Haematopus leucopodus). 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/53748 on 15 May 2018).
Magellanic Oystercatcher (Haematopus leucopodus), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: https://neotropical.birds.cornell.edu/Species-Account/nb/species/magoys1