Scaup Aythya marila [Linnaeus, 1761] |
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For details point at or click the |
Page updated:16-January-2013 |
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Order:
Anseriformes
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Family: Anatidae |
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BTO Codes:
SP, SCAUP
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EURING No: 2040 | |
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Number in Britain:
5200 birds (Winter)
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Conservation Status:
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| Links to: Images Videos Sound | ||
Status in UK:
(A) Scarce Breeder, Passage/Winter Visitor
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Subspecies:
marila recorded in Britain (of 2 subsp. in the world)
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Length:
46 cm
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Wingspan: 78 cm |
Weight:
M/F: 1 kg
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Scientific name from:
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Gr.: aithuia=a seabird described by Aristotle and Gr.: marile=charcoal embers |
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World Distribution:
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BREEDS: n Eurasia, n North America, WINTERS: south to s Europe, e China & s US |
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Habitat:
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Tundra lakes, on migration open lakes & coasts |
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Diet:
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Omnivorous, but esp. molluscs in winter, mostly by diving |
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TitBit:
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More than 30,000 Scaup used to winter in the Firth of Forth, feeding on waste grain from the breweries and distilleries until tighter sewage regulations stopped the discharges. |
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Population and Distribution |
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British Population Size:
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Winter:
5200 individuals
in 2004-09
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First Record:
1672
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First Breeding Record:
Outer Hebrides 1897
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Conservation Status:
RED
because
Recent Non-breeding Population Decline (1969-2007),
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Previous Assessments:
2002-2007
AMBER
1996-2001
AMBER
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| Races of Concern: | ||||
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Habitat Occupancy (in the Breeding Season):
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| No habitat data from BBS | ||||
| Migration routes: Map of foreign ringing recoveries and summary map from Time to Fly (in pop-up windows) | ||||
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European Population Size:
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Summer:
Unavailable
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| Population Assesment from Birds in Europe | ||||
| Distribution in Europe mapped by the EBCC Atlas | ||||
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Listed on the Appendices/Schedules of:
WCA(I), WBD(II*,III*), Bern(III), Bonn(II), AEWA
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Breeding and Survival |
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Egg Size:
62 x 43 mm
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Egg Weight: 67.0 g (of which 8 % is shell) | ||
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Number of Nest Records:
0
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Clutch Size:
8 - 11 eggs
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Incubation:
26- 28 days
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by the: Female |
Fledging:
40 - 45days
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as:
Precocial, downy
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First Clutches Laid:
Unavailable
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Number of Broods:
1
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Number Ringed:
Annual Totals
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Adult Survival:
0.480
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Juvenile Survival:
No data
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Age at First Breeding:
2
years
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Typical Lifespan:
3
years
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Maximum Recorded Age:
8 years 4 months 30 days (set in 1971)
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| Read a summary of Ringing Recoveries | |
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Biometrics |
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Ring Size:
G*
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Wing Length
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Adult: | Insufficient Data |
| Juvenile: | Insufficient Data | |
| Male: | Insufficient Data | |
| Female: | Insufficient Data | |
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Weight
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Adult: | Insufficient Data |
| Juvenile: | Insufficient Data | |
| Male: | Insufficient Data | |
| Female: | Insufficient Data | |
| Seasonal: | ||
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Other Names |
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| Greater Scaup | |
| Gaelic: Lach-mhara | Welsh: Hwyaden Benddu |
| Danish: Bjergand | Dutch: Toppereend |
| Finnish: Lapasotka | French: Fuligule milouinan |
| German: Bergente | Hungarian: Hegyi réce |
| Icelandic: Duggönd | Irish: Lacha Iascán |
| Italian: Moretta grigia | Norwegian: Bergand |
| Polish: Ogorzalka zwyczajna | Portuguese: Zarro-bastardo |
| Spanish: Porrón bastardo | Swedish: Bergand |
| Local Names:Mussel / Norwegian Duck | |
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For More Information... |
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Books and Monographs:
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| Kear, J 2005 Ducks, geese and swans Oxford University Press [598.48 KEA] | |
| Cabot, D. 2009 Wildfowl Collins, London | |
| See Also: | |
Find scientific papers on  Google Scholar
or  Scirus by clicking the icon
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| Wikipedia entry | |
| BirdLife species page | |
| Recent sightings and information from BirdGuides | |
| All About Birds (from the Cornell Lab of Ornithology) | |
| Details from the Patuxent Bird Identification Infocenter | |
| Read State of the Nations Birds by Chris Mead | |
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