Lesser Scaup Aythya affinis (Eyton, 1838)    Synonyms: Brass-eyed Blackhead, LESC, Little Blackhead, Small Blackhead.
Kingdom Animalia   >   Phylum Chordata   >   Class Aves   >   Order Anseriformes   >   Family Anatidae   >   Genus Aythya   

Description:

Note his head shape, thin nail (tip of bill), and the traditionally cited purple gloss on the head. However, note that gloss color (green=Greater, purple=Lesser) is not considered a reliable field mark on its own.

There are 326 records in the project database.

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A drake Lesser Scaup in Baltimore City, Maryland (3/23/2013). Photo by Jon Corcoran. (MBP list)

A drake Lesser Scaup along the Cambridge waterfront, Maryland (2/10/2008). Photo by Bill Hubick. (MBP list)(More of this species)

Lesser Scaup in Anne Arundel Co., Maryland (1/30/2019). Photo by Emily Carter Mitchell. (MBP list)

A drake Lesser Scaup in Dorchester Co., Maryland (1/2/2013). Photo by Mark Johnson. (MBP list)

A drake Lesser Scaup in Cambridge, Dorchester Co., Maryland (1/25/2015). Photo by Sanjib Bhattacharyya. (MBP list)

A Lesser Scaup in St. Mary's Co., Maryland (1/21/2018). Photo by Andy Connelly. (MBP list)

A hen Lesser Scaup in Dorchester Co., Maryland (1/2/2013). Photo by Mark Johnson. (MBP list)

Lesser Scaup in Baltimore, Maryland (12/4/2012). Photo by Jon Corcoran. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (2/16/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (2/13/2019). (c) Judy Gallagher, some rights reserved (CC BY). Photo by Judy Gallagher. (MBP list)

A Lesser Scaup in St. Mary's Co., Maryland (3/3/2017). Photo by Ben Springer. (MBP list)

A Lesser Scaup in Baltimore City, Maryland (9/2/2015). Photo by Tim Carney. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (3/8/2021). (c) Judy Gallagher, some rights reserved (CC BY-NC). Photo by Judy Gallagher. (MBP list)

A Lesser Scaup in Dorchester Co., Maryland (3/2/2017). Photo by Emily Carter Mitchell. (MBP list)

A Lesser Scaup in Dorchester Co., Maryland (2/6/2019). Photo by Matthew Addicks. (MBP list)

A Greater Scaup (left), Tufted Duck (middle), and Lesser Scaup (right) in Dorchester Co., Maryland (1/11/2009). Photo by Steve Collins. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (1/2/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (1/23/2021). (c) jderby125, some rights reserved (CC BY-NC). Photo by jderby125 via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (2/16/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (11/22/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (11/22/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (11/22/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (1/2/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (2/16/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (1/2/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Lesser Scaup in Dorchester Co., Maryland (2/16/2020). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Lesser Scaup in St. Mary's Co., Maryland (3/25/2017). Photo by Ben Springer. (MBP list)

A comparison of first-winter male Aytha ducks: Greater Scaup (left), Lesser Scaup (middle) and Ring-necked Duck in Tompkins Co., New York (1/8/2012). Photo by Chris Wood. (MBP list)

A drake Lesser Scaup in Dorchester Co., Maryland (2/1/2014). Photo by Sanjib Bhattacharyya. (MBP list)

A drake Lesser Scaup in flight in Cambridge, Dorchester Co., Maryland (2/14/2015). Photo by Matthew Addicks. (MBP list)

A Lesser Scaup in flight in Cambridge, Maryland (1/27/2013). Photo by George Armistead. (MBP list)

A Lesser Scaup (tail mid-dive) in Cambridge, Dorchester Co., Maryland (2/14/2015). Photo by Matthew Addicks. (MBP list)


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