White-throated Treerunner (Pygarrhichas albogularis) [XC798873]
by Jos\u00e9 Luis Bartheld from Lapataia, Ushuaia, Tierra del Fuego, Argentina (?)
White-throated Treerunner (Pygarrhichas albogularis) [XC870882]
by Gabriel Morales from Estancilla, Valdivia, Chile (uncertain)
Subspecies
No subspecies.
Traditionally placed near Xenops and other bark-gleaning furnariids, but plumage and biogeography suggest that such a relationship unlikely and that any similarities are due to convergence. Possible relationship to Aphrastura suggested by superficial plumage similarities and details of foraging behaviour.