Aythya

Lesser Scaup Aythya affinis
A North American diving duck. Males are mainly black and white, females are brown, and the back of the head has a small peak.
Redhead Aythya americana
The Redhead is a diving duck of North America. In breeding plumage the male has a reddish-brown head and blue-gray bill; the female is brown with a paler face.
Hardhead Aythya australis
The Hardhead is an Australian diving duck with a dark brown body and white belly.
Baer's Pochard Aythya baeri
This duck breeds at lakes with rich vegetation and uses freshwater lakes and reservoirs in winter. Breeding males have a green gloss on the head.
Ring-necked Duck Aythya collaris
The Ring-necked Duck is a diving duck that also uses shallow wetlands. It breeds in northern North America and uses lakes and wetlands during migration and winter.
Common Pochard Aythya ferina
The breeding male is a diving duck with a striking reddish-brown head.
Tufted Duck Aythya fuligula
A diving duck distinguished by a tuft at the back of its head and yellow eyes.
Madagascar Pochard Aythya innotata
The Madagascar Pochard is a small brown diving duck. It spends much of its time on the water and dives to find food below the surface.
Greater Scaup Aythya marila
The male has a glossy dark head and gray back; the female is marked by a white patch at the base of the bill.
New Zealand Scaup Aythya novaeseelandiae
The New Zealand Scaup is a diving duck. Large flocks can gather along lakeshores, sometimes close to people.
Ferruginous Duck Aythya nyroca
A small duck with a peaked crest and gray bill, also seen in wetlands in Cyprus.
Canvasback Aythya valisineria
A diving duck that breeds on North American lakes and marshes. In winter it gathers on fresh and coastal waters to find aquatic plant roots and tubers.
Common Pochard Aythya ferina
The breeding male is a diving duck with a striking reddish-brown head.
Tufted Duck Aythya fuligula
A diving duck distinguished by a tuft at the back of its head and yellow eyes.
Greater Scaup Aythya marila
The male has a glossy dark head and gray back; the female is marked by a white patch at the base of the bill.
Ferruginous Duck Aythya nyroca
A small duck with a peaked crest and gray bill, also seen in wetlands in Cyprus.
Ring-necked Duck Aythya collaris
The Ring-necked Duck is a diving duck that also uses shallow wetlands. It breeds in northern North America and uses lakes and wetlands during migration and winter.
Lesser Scaup Aythya affinis
A North American diving duck. Males are mainly black and white, females are brown, and the back of the head has a small peak.
Canvasback Aythya valisineria
A diving duck that breeds on North American lakes and marshes. In winter it gathers on fresh and coastal waters to find aquatic plant roots and tubers.
Redhead Aythya americana
The Redhead is a diving duck of North America. In breeding plumage the male has a reddish-brown head and blue-gray bill; the female is brown with a paler face.
Baer's Pochard Aythya baeri
This duck breeds at lakes with rich vegetation and uses freshwater lakes and reservoirs in winter. Breeding males have a green gloss on the head.
New Zealand Scaup Aythya novaeseelandiae
The New Zealand Scaup is a diving duck. Large flocks can gather along lakeshores, sometimes close to people.
Hardhead Aythya australis
The Hardhead is an Australian diving duck with a dark brown body and white belly.
Madagascar Pochard Aythya innotata
The Madagascar Pochard is a small brown diving duck. It spends much of its time on the water and dives to find food below the surface.