- The
redhead (
Aythya americana) is a medium-sized
diving duck. The
scientific name is
derived from Gr**** ait****a, an
unidentified seabird mentioned by authors...
-
Canvasback (
Aythya valisineria)
Common pochard (
Aythya ferina)
Redhead (
Aythya americana) Ring-necked duck (
Aythya collaris)
Female Hardhead (
Aythya australis)...
-
Asarcornis scutulata,
which is
evolutionarily closer to the
redhead (
Aythya americana, one of the
diving ducks). This is one of the
largest living species...
-
Aythya Canvasback (
Aythya valisineria)
Common pochard (
Aythya ferina)
Redhead (
Aythya americana) Ring-necked duck (
Aythya collaris)
Hardhead (
Aythya australis)...
- Canvasback,
Aythya valisineria Redhead,
Aythya americana Common pochard,
Aythya ferina (A) Ring-necked duck,
Aythya collaris Tufted duck,
Aythya fuligula...
- The
canvasback (
Aythya valisineria) is a
species of
diving duck, the
largest found in
North America. Scottish-American
naturalist Alexander Wilson described...
- (Aristonetta)
Baird 1858
Aythya americana (Eyton 1838) (redhead) LC
Aythya ferina (Linnaeus 1758) (common pochard) VU A2ab+3b+4ab
Aythya valisineria (Wilson...
- (A) Red-breasted merganser,
Mergus serrator Redhead,
Aythya americana Ring-necked duck,
Aythya collaris Ross's goose,
Anser rossii Ruddy duck, Oxyura...
-
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 (A) Redhead,
Aythya americana (A) Ring-necked duck,
Aythya collaris Greater scaup,
Aythya marila Lesser scaup,
Aythya affinis...