Auckland Island merganser
| Auckland Island merganser Temporal range: Late Holocene  | |
|---|---|
| Stuffed specimen from 1902 | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Aves | 
| Order: | Anseriformes | 
| Family: | Anatidae | 
| Genus: | Mergus | 
| Species: | †M. australis  | 
| Binomial name | |
| †Mergus australis | |
  Original range of the Auckland Island merganser  | |
The Auckland Island merganser (Mergus australis) (Māori: Miuweka), also known as the New Zealand merganser, is an extinct species of typical merganser.