Birds of the World

    ANSERIFORMES: Anatidae (Ducks, Geese, Swans)  
Genus: Aythya (12 species)

Aythya is a genus of 'diving ducks', but their diet is similar to genus Anas, 'dabbling ducks', and is a mixture of plant and animal matter (insects, mollusks, but not fish).


Lesser Scaup
Lesser Scaup (Aythya affinis) Male
Range: NA: sw Alaska mainland to California, wc Quebec and w Minnesota
Beaumaris Lake, Edmonton, Alberta, Canada  
   
Photograph by dfaulder     Copyright and usage info

Lesser Scaup
Lesser Scaup (Aythya affinis) Female
Range: NA: sw Alaska mainland to California, wc Quebec and w Minnesota
Beaumaris Lake, Edmonton, Alberta, Canada  
   
Photograph by dfaulder     Copyright and usage info

The Lesser Scaup has a narrower, taller head than the Greater Scaup, and is a bit smaller. The head may have a purple iridescence.

Redhead
Redhead (Aythya americana) Male
Range: NA: widespread
Flamingo Gardens, Davie, Florida, USA  
   
Photograph by Tom Friedel   © All Rights Reserved.


Hardhead
Hardhead (Aythya australis) Male
Range: AU: Australia and Tasmania, New Zealand, Grande Terre (New Caledonia) and Banks Is. to Tanna (n to s Vanuatu)
Lake Dulverton, Oatlands, Tasmania, Australia  
 
Photograph by JJ Harrison     Copyright and usage info

Hardhead
Hardhead (Aythya australis) Female
Range: AU: Australia and Tasmania, New Zealand, Grande Terre (New Caledonia) and Banks Is. to Tanna (n to s Vanuatu)
Perth, Western Australia, Australia  
 
Photograph by JJ Harrison     Copyright and usage info


No Image
Baer's Pochard (Aythya baeri) Critically Endangered
Range: PAL: se Siberia and n China
 



Ring-necked Duck
Ring-necked Duck (Aythya collaris) Male
Range: NA: widespread
Vancouver, Canada  
   
Photograph by Nigel from Vancouver     Copyright and usage info

Ring-necked Duck
Ring-necked Duck (Aythya collaris) Female
Range: NA: widespread
Vancouver, Canada  
   
Photograph by Nigel from Vancouver     Copyright and usage info


Common Pochard
Common Pochard (Aythya ferina) Male Vulnerable
Range: PAL: w Europe to c Asia and n China
Hungary  
   
Photograph by Stephen G. Davis   © All Rights Reserved.

Common Pochard
Common Pochard (Aythya ferina) Female Vulnerable
Range: PAL: w Europe to c Asia and n China
Hungary  
   
Photograph by Stephen G. Davis   © All Rights Reserved.


Tufted Duck
Tufted Duck (Aythya fuligula) Male
Range: PAL: widespread
Kirchhain, Germany  
   
Photograph by Andreas Trepte     Copyright and usage info

Tufted Duck
Tufted Duck (Aythya fuligula) Female
Range: PAL: widespread
Kirchhain, Germany  
   
Photograph by Andreas Trepte     Copyright and usage info


No Image
Madagascar Pochard (Aythya innotata) Critically Endangered
Range: AF: nw Madagascar (nearly extinct and now restricted to single lake in Banemavka area)
 



Greater Scaup
Greater Scaup (Aythya marila) Male
Range: NA, PAL: subarctic Iceland and Scandinavia to Kamchatka and the Commander Is. (se Russia); Alaska to n Quebec
Lake Sammamish State Park, Issaquah, Washington State, United States  
   
Photograph by Mick Thompson/Eastside Audubon     Copyright and usage info

Greater Scaup
Greater Scaup (Aythya marila) Female
Range: NA, PAL: subarctic Iceland and Scandinavia to Kamchatka and the Commander Is. (se Russia); Alaska to n Quebec
 
   
Photograph by Tom Friedel   © All Rights Reserved.

In general more of a salt water duck than the Lesser Scaup, and note larger rounder head.

New Zealand Scaup
New Zealand Scaup (Aythya novaeseelandiae) Male
Range: AU: North and South Is. (New Zealand)
Miami Zoo, Miami, Florida, USA  
 
Photograph by Tom Friedel   © All Rights Reserved.


Ferruginous Duck
Ferruginous Duck (Aythya nyroca) Male Near Threatened
Range: PAL: w Europe and nw Africa to c Asia
Miami Zoo, Miami, Florida, USA  
 
Photograph by Tom Friedel   © All Rights Reserved.

Also known as the White-eyed Duck (only male has a white eye).

Canvasback
Canvasback (Aythya valisineria) Male
Range: NA: widespread
Lake Sammamish State Park, Issaquah, Washington State, USA  
   
Photograph by Mick Thompson/Eastside Audubon     Copyright and usage info

Canvasback
Canvasback (Aythya valisineria) Female
Range: NA: widespread
Zoo, Florida,  
   
Photograph by Tom Friedel   © All Rights Reserved.



© Tom Friedel - All Rights Reserved, except for images and data otherwise noted.       Colombia       Panama       Ecuador       Costa Rica       Mexico
Experimental sites:       Peru       Venezuela       The World       Brazil       Bolivia
Really Experimental sites:       Guyana       Cuba