P. P. King, 1831,
Strait of Magellan.
Present species and T. leucocephalus form a clade#R. Some populations in Falkland Is previously thought to be of this species are now considered to be a flying population of T. brachypterus#R (see below). Older species name Oidemia Patachonica not clearly identifiable; previously applied to this species, but has now been formally suppressed for purposes of priority, in order to protect current valid names for both present species and T. pteneres#R. Monotypic.
Mainly coasts of S Chile (S from Ñuble), extreme S Argentina (S from Río Negro) and Tierra del Fuego.
Food and feeding
Status and conservation
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