Fig. 8. The number of Yahgan bird names that are known to science continues increasing until today. For example, for forest bird species of the Cape Horn region, Charles Darwin (1839) did not register Yahgan names. Later, in the 1870s, the Anglican missionary Thomas Bridges included in the manuscript of his Yahgan-English dictionary, Yahgan names for 16 species, among them lana for the Magellanic woodpecker (Campephilus magellanicus). In the 1920s, the ethnographer Martin Gusinde continued discovering new Yahgan bird names, for example, Omora for the firecrown hummingbird (Sephanoides sephaniodes). More recently, in the 1980s the linguists Maria Teresa Poblete and Adalberto Salas (1997) added names for three other bird species, including the Andean condor (Vultur gryphus) or wariao in Yahgan. Finally, our own work has raised the number of known Yahgan names for forest bird species to 38, including names for nocturnal birds such as kujurj for the rufous-legged owl (Strix rufipes) (Rozzi 2002, Massardo and Rozzi 2004). Figure modified from Rozzi et al 2003b.