Harteman Wildfowl, presented by Jan Harteman

Taxa of Threatened Waterfowl of the World

Identified by the Threatened Waterfowl Specialist Group

Update: August 1st 2020

 

The IUCN SSC Threatened Waterfowl Specialist Group (TWSG) identifies which Anseriformes taxa are globally threatened, monitors their status, produces international action plans and exchanges information on conservation projects on globally threatened Anseriformes and encourages contacts between everyone working with or enthusiastic about these ducks, geese, swans and screamers. To date (2020), the TWSG has helped bring about major advances in the conservation of many threatened waterfowl, such as the Hawaiian goose, red-breasted goose, white-headed duck, white-winged duck, Madagascar pochard and scaly-sided merganser.

 

twsg_logo_2020_small.gif

 

TWSG is primarily interested in the following species, subspecies and populations of Anseriformes but keeps watch over every family member:

 

SPECIES



Extinct since c 500 BP

New Zealand Swan Cygnus sumnerensis

Mauritian Shelduck Alopochen mauritiana

Réunion Shelduck Mascarenachen kervazoi

Chatham Island Duck Pachyanas chathamica

Finsch’s Duck Chenonetta finschi

Mauritian Duck Anas theodori

Amsterdam Island Duck Anas marecula

Labrador Duck Camptorhynchus labradorius

Auckland Islands Merganser Mergus australis

 

Critically Endangered

Crested Shelduck Tadorna cristata
Laysan Teal Anas laysanensis

Pink-headed Duck Rhodonessa caryophyllacea

Baer’s Pochard Aythya baeri
Madagascar Pochard Aythya innotata

Brazilian Merganser Mergus octosetaceus

 

Endangered

Blue Duck Hymenolaimus malacorhynchos

White-winged Duck Cairina scutulata

Hawaiian Duck Anas wyvilliana

Meller’s Duck Anas melleri

Madagascar Teal Anas bernieri

Campbell Islands Teal Anas nesiotis

Velvet Scoter Melanitta fusca

Scaly-sided Merganser Mergus squamatus

White-headed Duck Oxyura leucocephala

 

Vulnerable

West Indian Whistling-duck Dendrocygna arborea

Swan Goose Anser cygnoid

Lesser White-fronted Goose Anser erythropus

Red-breasted Goose Branta ruficollis

Hawaiian Goose Branta sandvicensis

Blue-winged Goose Cyanochen cyanoptera

White-headed Steamer Duck Tachyeres leucocephalus

Salvadori’s Teal Salvadorina waigiuensis
Eaton’s Pintail Anas eatoni
Philippine Duck Anas luzonica
Andaman Teal Anas albogularis

Auckland Island Teal Anas aucklandica

Marbled Teal Marmaronetta angustirostris

Common Pochard Aythya ferina

Steller’s Eider Polysticta stelleri

Maccoa Duck Oxyura maccoa

 

Near Threatened

Long-tailed Duck Clangula hyemalis

Northern Screamer Chauna chavaria

Emperor Goose Anser canagicus

Orinoco Goose Oressochen (Neochen) jubata

Falcated Duck Mareca falcata

Brown Teal Anas chlorotis

Spectacled Duck Speculanas specularis

Ferruginous Duck Aythya nyroca

Black Scoter Melanitta americana

Common Eider Somateria mollissima

Spectacled Eider Somateria fischeri

Blue-billed Duck Oxyura australis


Least concern

(only those species that were previously listed in a higher category are shown here)

Comb Duck Sarkidiornis sylvicola

Baikal Teal Sibrionetta formosa

Stejneger’s Scoter Melanitta stejnegeri  (as Asiatic White-winged Scoter Melanitta fusca deglandi)

 

SUB-SPECIES


 

Extinct since AD 1600

Coue's Gadwall Mareca strepera couesi

Mariana Mallard Anas platyrhynchos oustaleti

Rennell Island Grey Teal Anas gracilis remissa

Chatham Island Teal Anas chlorotis ssp. nov

 

Critically Endangered

Niceforo’s Pintail Anas georgica niceforoi

Borrero’s Cinnamon Teal Anas cyanoptera borreroi

 

Endangered

Madagascar White-backed Duck Thalassornis leuconotus insularis

Tropical Cinnamon Teal Anas cyanoptera tropica

Galapagos Pintail Anas bahamensis galapagensis

Crozet Islands Pintail Anas eatoni drygalskii

Colombian Andean Duck Oxyura ferruginea andina

 

Vulnerable

Recherche Cape Barren Goose Cereopsis novaehollandiae grisea

Middendorf's Bean Goose Anser fabalis middendorffi

Thick-billed Bean Goose Anser serrirostris serrirostris

Tule Greater White-fronted Goose Anser albifrons elgasi

Dusky Canada Goose Branta canadensis occidentalis

Peruvian Torrent Duck Merganetta armata leucogenis

Colombian Torrent Duck Merganetta armata colombiana

Australian Cotton Pygmy Goose Nettapus coromandelianus albipennis

Merida Teal Anas andium altipetens

Kerguelen Pintail Anas eatoni eatoni

 

Near Threatened

Florida Mottled Duck Anas fulvigula fulvigula

Australian Black Duck Anas superciliosa rogersi

Lesser Grey Duck Anas superciliosa pelewensis

Andean Teal Anas andium andium

South Georgia Pintail Anas georgica georgica
South American Pochard Netta erythropthalma erythropthalma

Pacific Eider Somateria mollissima v-nigrum

 

Least concern

(only those species that were previously listed in a higher category are shown here)

Stejneger’s Scoter Melanitta stejnegeri  (in last TWSG list as Asiatic White-winged Scoter Melanitta fusca deglandi)

 

POPULATIONS



Extinct since AD 1600

Not evaluated

 

Critically Endangered

Ruddy-headed Goose Chloephaga rubidiceps Mainland South America

 

Endangered

None

 

Vulnerable

Black-necked Swan Cygnus melanocorypha Falkland Islands

Comb Duck Sarkidiornis melanotus S/SE Asia
Chiloe Wigeon Anas sibilatrix Falkland Islands

Harlequin Duck Histrionicus histrionicus Atlantic Basin

Barrow’s Goldeneye Bucephala islandica Iceland (population in recent review is stable)

 

Near Threatened

Fulvous Whistling Duck Dendrocygna bicolor S Asia

Brent Goose Branta bernicla Parry Islands/Puget Sound

Yellow-billed Pintail Anas georgica Falkland Islands
Silver Teal Anas versicolor Falkland Islands

Harlequin Duck Histrionicus histrionicus Pacific

 

Data deficient

Barrow’s Goldeneye Bucephala islandica Greenland/Eastern North America

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