Brazilian Merganser
Mergus octosetaceus
IUCN: Critically Endangered
Taxonomy
- Order
- Anseriformes
- Family
- Anatidae
- Genus
- Mergus
- eBird Code
- bramer1
Distribution
forest rivers, now mostly in a few sites in southeastern Brazil, at least formerly also in Paraguay and Misiones (northeastern Argentina); rare
Data Sources
Taxonomy data from AviList 2025.