The Fuegian Snipe occurs in the temperate-forest region of southern South America. It probes wet soil for small invertebrates with its long, slender bill; some birds have been recorded year-round in Cape Horn National Park.
It has a long, slender bill. In observations on Horn Island, juveniles had yellowish-green legs, contrasting with the brighter yellow legs of adults.
It probes wet soil by inserting more than half of its long bill and pausing for several seconds to find small invertebrates such as earthworms. On Horn Island, a family group of two adults and one juvenile was recorded from January to October 2023, spanning summer through spring.
At Parque La Tapera, Chile, a ground nest with two eggs was found in October 2024. The nest contained peat moss, rushes, fern and lichen, concealed by shrubs and other vegetation. The eggs were pale brown with yellow undertones, with reddish-brown and cinnamon spots concentrated near the broad end.
At this La Tapera nest, incubation continued for at least 25 days, from 12 October to 5 November 2024, when two chicks were recorded in snow. Both parents were present at or near the nest during incubation. An adult and one chick were still seen together eight days after hatching.
An extinction-risk assessment has not been added yet.