Status in UK:
(A) Scarce Breeder, Passage/Winter Visitor
Subspecies:marila recorded in Britain (of 2 subsp. in the world)
.
Length:
46 cm
Wingspan:
78 cm
Weight:
M/F: 1 kg
Scientific name from:
Gr.: aithuia=a seabird described by Aristotle
and Gr.: marile=charcoal embers
World Distribution:
BREEDS: n Eurasia, n North America, WINTERS: south to s Europe, e China & s US
Habitat:
Tundra lakes, on migration open lakes & coasts
Diet:
Omnivorous, but esp. molluscs in winter, mostly by diving
TitBit:
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
Population and Distribution
Population Trend:
No population trend available
Distribution:
No distribution maps available
British Population Size:
Winter:
7560 individuals
in 1990-99
First Record:
1672
First Breeding Record:
Outer Hebrides 1897
Habitat Occupancy (in the Breeding Season):
No habitat data from BBS
European Population Size:
Summer:
Unavailable
Population Assesment from Birds in Europe
Distribution in Europe
Listed on the Appendices/Schedules of:
WCA(I), WBD(II*,III*), Bern(III), Bonn(II), AEWA
Survey Results:
Wetland Bird Survey Alerts
Breeding and Survival
Egg Size:
62 x 43 mm
Egg Weight:
67.0 g (of which 8 % is shell)
Number of Nest Records:
0
Clutch Size:
8 - 11 eggs
Incubation:
26 - 28 days
by the:
Female
Fledging:
40 - 45 days
as:
Precocial, downy
First Clutches Laid:
Unavailable
Number of Broods:
1
Number Ringed:
2
Adult Survival:
No data
Juvenile Survival:
No data
Age at First Breeding:
2
years
Typical Lifespan:
No data
Maximum Recorded Age:
8yr4m
(Finland: 14yr 0m)
Biometrics
Ring Size:
G*
Wing Length
Adult:
Insufficient Data.
Juvenile:
Insufficient Data.
Male:
Insufficient Data
Female:
Insufficient Data
Weight
Adult:
Insufficient Data.
Juvenile:
Insufficient Data.
Male:
Insufficient Data
Female:
Insufficient Data
Other Names
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
For More Information...
Books and Monographs:
Kear, J 2005 Ducks, geese and swans Oxford University Press
[598.48 KEA]
See Also:
All About Birds (Cornell Lab of Ornithology)
Gough, G.A. et al. (1998) Patuxent Bird Identification Infocenter
Wikipedia entry
State of the Nations Birds by Chris Mead
Recent sightings and information from BirdGuides.com
These data should be cited as: Robinson, R.A. (2005) BirdFacts: profiles of birds occurring in Britain & Ireland (v1.22, Oct 2008). BTO Research Report 407, BTO, Thetford (http://www.bto.org/birdfacts)
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Other Names
