- The ring-necked duck (
Aythya collaris) is a
diving duck from
North America commonly found in
freshwater ponds and lakes. The
scientific name is derived...
-
Canvasback (
Aythya valisineria)
Common pochard (
Aythya ferina)
Redhead (
Aythya americana) Ring-necked duck (
Aythya collaris)
Female Hardhead (
Aythya australis)...
-
Aythya Canvasback (
Aythya valisineria)
Common pochard (
Aythya ferina)
Redhead (
Aythya americana) Ring-necked duck (
Aythya collaris)
Hardhead (
Aythya australis)...
- Canvasback,
Aythya valisineria (A)
Common pochard,
Aythya ferina (vulnerable) Ring-necked duck,
Aythya collaris (A)
Ferruginous duck,
Aythya nyroca (near-threatened)...
- The
lesser scaup (
Aythya affinis) is a
small North American diving duck that
migrates south as far as
Central America in winter. It is
colloquially known...
- t22679763a92829021.en.old-form url, |date= / |doi=
mismatch IUCN (2020-11-13). "
Aythya collaris:
BirdLife International: The IUCN Red List of
Threatened Species 2021:...
-
Aythya valisineria (B) Redhead,
Aythya americana (B) Ring-necked duck,
Aythya collaris (B)
Tufted duck,
Aythya fuligula (A)
Greater scaup,
Aythya marila...
- Canvasback,
Aythya valisineria Redhead,
Aythya americana Ring-necked duck,
Aythya collaris Greater scaup,
Aythya marila Lesser scaup,
Aythya affinis King...
- Red-breasted merganser,
Mergus serrator Redhead,
Aythya americana Ring-necked duck,
Aythya collaris Ross's goose,
Anser rossii Ruddy duck,
Oxyura jamaicensis...
- New
Zealand scaup Aythya novaeseelandiae (Gmelin, JF, 1789) 138 Ring-necked duck
Aythya collaris (Donovan, 1809) 139
Tufted duck
Aythya fuligula (Linnaeus...
