Birds
Fuegian Steamer Duck
Tachyeres pteneres
Thrashing across the water’s surface with powerful wings rather than taking flight, a Fuegian steamer duck churns forward in a motion that resembles a steamship, one of only a small number of flightless duck species found anywhere on Earth.
Overview
The Fuegian steamer duck, Tachyeres pteneres, is a Least Concern bird native to coastal and ocean habitat across the southern tip of South America. Its complete loss of flight, its powerful wing-driven water propulsion, and its notably aggressive, territorial temperament make it one of the more physically and behaviourally distinctive waterfowl species found anywhere in the Southern Hemisphere.
A duck that traded flight for power
While most ducks rely on flight to escape danger or travel between feeding grounds, the Fuegian steamer duck instead gave up flight entirely, channeling that evolutionary trade-off into a larger, more powerful body suited to violent territorial combat and fast water propulsion.
Status
Least Concern, remaining widespread and generally stable across suitable rocky coastal habitat throughout southern Chile, Argentina, and Tierra del Fuego.
Fuegian Steamer Duck: common questions
Why is it called a steamer duck?
This species propels itself rapidly across the water's surface by thrashing its wings in a motion that resembles a steamship churning forward, a behaviour that gives the species its common name.
Can the Fuegian steamer duck fly?
No, this species has lost the ability to fly entirely, one of only a small number of flightless duck species found anywhere in the world.
Is the Fuegian steamer duck aggressive?
Yes, this species is extremely aggressive and territorial, with males frequently engaging in violent fights over mates and territory along the coastline.
What kind of habitat does the Fuegian steamer duck prefer?
This species is closely tied to rocky coastal shoreline across southern Chile, Argentina, and Tierra del Fuego, rarely found far from this specific habitat.