This is the largest of the steamer-ducks and when I first noticed it, I thought it was a domestic goose. This species also goes by the name Fuegian Steamer-Duck and Magellanic Flightless Steamer-Duck. IOC and Howard & Moore remove the hyphen in its English name while HBW and Birdlife International compound the specific name resulting in "Magellanic Steamerduck." They are called "steamer-ducks" because when swimming they look like a paddle steamboat as they splash their wings and feet.
Digiscoped with Panasonic DMC-LX5 | Nikon FieldScope 3 | 30X WA | hand-held (no adapter)