Speculanas specularis
Silhouette: Sheatherius · PhyloPic
In 3 days ~60% in a week ~90%
The bronze-winged duck (Speculanas specularis) also known as the spectacled duck, is a dabbling duck and the sole member of its genus Speculanas. It is often placed in Anas with most other dabbling ducks, but its closest relative is either the crested duck or the Brazilian duck, which likewise form monotypic genera. Together they belong to a South American lineage which diverged early from the other dabbling ducks and may include the steamer ducks.
Named after the "bronze" speculum this species is also known as "pato perro" or "dog-duck" after the harsh barking call of the female. The bronze-winged duck lives among forested rivers and fast-flowing streams on the lower slopes of the South American Andes, in central and southern Chile and adjacent parts of Argentina.
The sexes are alike. The species lives on forested rivers. While they appear to prefer fast-moving water, they can also be found less frequently in forested ponds. They eat plants and small invertebrates, including water crowfoot (Ranunculus sp.), water milfoil (Myriophyllum sp.), bulrushes, as well as caddisfly larvae and snails. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tierra del Fuego National Park | 🇦🇷 Argentina | |
| 2 | Torres del Paine National Park | 🇨🇱 Chile |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Ostrava Zoo | 🇨🇿 Czechia | |
| 2 | Whitcliff Park (Deer Park) | 🇬🇧 United Kingdom | |
| 3 | Santillana Zoo | 🇪🇸 Spain | |
| 4 | Wild Discovery Zoo | 🇬🇧 United Kingdom |
Possible
About 30% of wildlife watchers report a Spectacled Duck sighting in Tierra del Fuego National Park on a given day, based on 326 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 28th most-seen of the 78 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
July
In that month about 60% of wildlife watchers report a Spectacled Duck in Tierra del Fuego National Park on a given day, against about 10% in October and November, the lowest months. June has too few records to rate.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Spectacled Duck sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Spectacled Duck sightings, Tierra del Fuego National Park has the highest daily chance: about 30%. Next come Torres del Paine National Park (Chile, about 20%).
Same family: Anatidae
The closest relatives of the Spectacled Duck that you can see in Tierra del Fuego National Park (family Anatidae, Ducks, Geese, and Swans) are Upland Goose (about 80%), Flightless Steamer-Duck (about 60%) and Crested Duck (about 60%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Spectacled Duck is recorded against all the birds logged in Tierra del Fuego National Park (326 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
