Bird Album
Brazilian Merganser
Mergus octosetaceus Vieillot, 1817
983 gWeight
The Brazilian merganser (Mergus octosetaceus) is a South American diving duck in the Mergus genus.
Busiest months: January and July–November · Most records: Brazil
Where and when it's recorded
Busiest months: January and July–November · Most records: Brazil
Brazilian Merganser has been recorded at 1 of the 8,276 birding hotspots we track, in 1 country or region.
Records by month Southern Hemisphere
Where it's recorded most
- PN Serra da CanastraBrazil108 records
Countries and regions with the most records
eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.
About
The Brazilian merganser (Mergus octosetaceus) is a South American diving duck in the Mergus genus.
Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia
Questions
How big is the Brazilian Merganser?
The Brazilian Merganser weighs around 983 g.
Where does the Brazilian Merganser live?
Its breeding range: South America: south-central Brazil, eastern Paraguay and northeastern Argentina. It is most often recorded in Brazil.
When is the best time to see the Brazilian Merganser?
At the hotspots we track, it is recorded most in January, July, August, September, October and November (Southern Hemisphere).
Is the Brazilian Merganser endangered?
The IUCN Red List classifies the Brazilian Merganser as Critically Endangered.
What does the Brazilian Merganser eat?
Main food: Fish, shrimp & shellfish.
What family is the Brazilian Merganser in?
It belongs to the family Ducks, Geese, Swans (Anatidae), order Anseriformes.
At a glance
- Weight
- 983 g
- Habitat
- Rivers & streams
- Diet
- Fish, shrimp & shellfish
- Lifestyle
- On the water surface
- Migration
- Resident (barely migrates)
- Conservation
- Critically Endangered
More measurements
- Wing
- 196 mm
- Tail
- 81 mm
- Bill
- 56 mm
- Tarsus
- 39 mm
Averages from the AVONET dataset; length from field guides where available.
Range
South America: south-central Brazil, eastern Paraguay and northeastern Argentina
Breeding range, IOC World Bird List 15.2
Classification
- Order
- Anseriformes
- Family
- Ducks, Geese, Swans Anatidae
- Genus
- Mergus
Other birds in the genus Mergus
Common MerganserMergus merganser
Red-breasted MerganserMergus serrator
Scaly-sided MerganserMergus squamatus
White-faced Whistling DuckDendrocygna viduata
Black-bellied Whistling DuckDendrocygna autumnalis
Spotted Whistling DuckDendrocygna guttata
West Indian Whistling DuckDendrocygna arborea
Fulvous Whistling DuckDendrocygna bicolor
Plumed Whistling DuckDendrocygna eytoni
Wandering Whistling DuckDendrocygna arcuata
Download illustration
Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Luiz Alberto Santos. ↗
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