Long-tailed Duck Clangula hyemalis   [Linnaeus, 1758]

Other Names Trends & Distribution Breeding & Survival Biometrics Books & Links

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Order: Anseriformes Family: Anatidae
BTO Codes: LN, LOTDU EURING No: 2120
Number in Britain: 11 thousand birds (Winter)
Conservation Status:
UK: GREEN
European: Not a species of concern
Global: Least Concern ( Details )
Links to: Images   Videos   Sound  
Status in UK: (A)  Winter Visitor
Subspecies: Monotypic
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Length: 44 cm Wingspan: 76 cm Weight: M/F: 730 g    
Scientific name from: L.: clangere=to resound and L.: hiemalis=wintry (from hiemis=winter)
World Distribution: BREEDS: n Eurasia & n North America, WINTERS: south to s Europe, e China and s US
Habitat: Tundra lakes, on migration open lakes & coasts
Diet: Aquatic invertebrates, esp. molluscs, crustaceans

Population and Distribution

Population Trend: No population trend available
Distribution: Atlas Maps    (Local Atlases)   
British Population Size:
    Winter: 11 thousand individuals in 2004-09     Note: Best estimate
    First Record: 1694 [Fossil evidence from
    Conservation Status: GREEN
   Previous Assessments: 2002-2007 AMBER     1996-2001 GREEN  
   Races of Concern:
Habitat Occupancy (in the Breeding Season):
    No habitat data from BBS
European Population Size:
    Summer: 20 to 50 thousand pairs
Population Assesment from Birds in Europe
Distribution in Europe
Listed on the Appendices/Schedules of: WCA(I), WBD(II*), Bern(III), Bonn(II), AEWA
Survey Results:

Breeding and Survival

Egg Size: 54 x 38 mm Egg Weight: 43.0 g (of which 7 % is shell)
Number of Nest Records: 0
Clutch Size: 6 - 9 eggs
Incubation: 24- 29 days   by the: Female
Fledging: 35 - 40days as: Precocial, downy
First Clutches Laid: Unavailable
Number of Broods: 1
Number Ringed: 1 (Annual Totals)
Adult Survival: 0.720       
Juvenile Survival: No data
Age at First Breeding: Typical Lifespan: No data
Maximum Recorded Age: 20 years 0 months 4 days (set in 1987)
Summary of Ringing Recoveries       

Biometrics

Ring Size: F
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

Oldsquaw
Gaelic: Lach-bhinn Welsh: Hwyaden Gynffon-hir
Danish: Havlit Dutch: Ijseend
Finnish: Alli French: Harelde de Miquelon
German: Eisente Hungarian: Jeges réce
Icelandic: Hávella Irish: Lacha Earrfhada
Italian: Moretta codona Norwegian: Havelle
Polish: Lodówka Portuguese: Pato-de-cauda-afilada
Spanish: Havelda Swedish: Alfĺgel
Local Names:Ice Duck, Sea Pheasant

For More Information...

Books and Monographs:
   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
Wikipedia entry
BirdLife species page
Recent sightings and information from BirdGuides
All About Birds (Cornell Lab of Ornithology)
Gough, G.A. et al. (1998) Patuxent Bird Identification Infocenter
State of the Nations Birds by Chris Mead