Greater Scaup
Aythya marila
The Greater Scaup nests furthest north of all diving ducks. Their summer homes are in high latitudes in North America and Asia. Winters are spent in coastal zones further south, yet still in the northern hemisphere. The populations have diminished recently, and though the reasons are not fully understood, some believe coastal pollution is a factor.
The Lesser Scaup and the Greater Scaup are difficult to distinguish. Head shape is one way to differentiate them, but winter habitat can help too. The Greater is more of a saltwater bird and the Lesser is more of a freshwater bird.

Greater Scaup(Aythya marila) |
Description: Foraging at Chula Vista Bayfront Park, Chula Vista, California. San Diego County. |
Date Taken: 2012:02:16 8:56 |
Location:
Bayfront Park |
Camera Information: NIKON D3X, 800 mm, f/5.6, 1/1600 |
File Name: D3X6665-GreaterScaup-Male |
© 2012 Jack Daynes, shadeTreeImaging.com |


Greater Scaup(Aythya marila) |
Description: Female at Chula Vista Bayfront Park, Chula Vista, California. San Diego County. |
Date Taken: 2012:02:16 9:16 |
Location:
Bayfront Park |
Camera Information: NIKON D3X, 800 mm, f/5.6, 1/1600 |
File Name: D3X6731-GreaterScaup-Female |
© 2012 Jack Daynes, shadeTreeImaging.com |


Greater Scaup(Aythya marila) |
Description: Female at Chula Vista Bayfront Park, Chula Vista, California. San Diego County. |
Date Taken: 2012:02:16 9:18 |
Location:
Bayfront Park |
Camera Information: NIKON D3X, 800 mm, f/5.6, 1/1600 |
File Name: D3X6733-GreaterScaup-Female |
© 2012 Jack Daynes, shadeTreeImaging.com |


Greater Scaup(Aythya marila) |
Description: Group taking off from South San Diego Bay, California 2016-05-27. |
Date Taken: 2006:03:16 9:40 |
Location:
Coronado Heights (historical) |
Camera Information: NIKON D2X, 550 mm, f/5.6, 1/1000 |
File Name: JCD2358GreaterScaup |
© 2006 Jack Daynes, shadeTree Imaging |


Greater Scaup(Aythya marila) |
Description: Drake and two hens at the Tijuana River Estuary. Imperial Beach, San Diego County, California 2016-05-27. |
Date Taken: 2010:02:18 11:10 |
Location:
Tijuana River Estuary |
Camera Information: NIKON D2X, 800 mm, f/6.3, 1/1500 |
File Name: JCD6667.GreaterScaup |
© 2010 - Jack Daynes - shadeTree Imaging |

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