Appearance
It is a wren-like bird, 10 to 12 cm in length. The bill is slender and black while the legs are pinkish and fairly long. The tail is short and held erect. The plumage is dark-grey with a chestnut tinge to the flanks, undertail and wings. Some birds have a silvery-white patch on the crown. Juvenile birds are brown with dark barring and usually lack white on the crown. The song is loud, staccato and repetitive.Distribution
Its range extends northwards from Tierra del Fuego as far as Valparaíso Region in Chile and San Juan Province in Argentina. Charles Darwin collected a specimen in the Falkland Islands in 1833 or 1834 but there have been no definite records there since.Behavior
It is terrestrial and prefers to run rather than fly.Habitat
It inhabits dense vegetation near ground-level in forest and woodland where it forages for insects. It often occurs near water and is commonly associated with stands of "Chusquea" bamboo.Reproduction
The domed nest is made of moss, lichens and root-fibres. Two or three white eggs are laid.References:
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