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Long-tailed Duck Clangula hyemalis   [Linnaeus, 1758]
Other Names Trends & Distribution Breeding & Survival Biometrics Books & Links
Order: Anseriformes Family: Anatidae
BTO Codes: LN, LOTDU EURING No: 2120
Number in Britain: 16 thousand birds (Winter)
Conservation Status:
UK: GREEN
European: Not a species of concern
Global: Least Concern
Links to: Images   Videos   Sound  

Status in UK: (A)  Scarce Breeder, 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
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Population and Distribution
Population Trend: No population trend available
Distribution: Atlas Maps    (Help with the New Atlas)   
British Population Size:
    Winter: 16 thousand individuals in 1990-00
    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:
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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
Adult Survival: 0.720       
Juvenile Survival: No data
Age at First Breeding: Typical Lifespan: No data
Maximum Recorded Age: 20yr 0m   (Finland: 22yr 8m)
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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
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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
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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:
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
Selected scientific papers published 1980-2005
Find more papers on Google Scholar
Find more papers on Scirus

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BirdWeb logo, click to go to BirdWeb BirdFacts home | BTO Home
Email: birdfacts@bto.org

These data should be cited as:
Robinson, R.A. (2005) BirdFacts: profiles of birds occurring in Britain & Ireland (v1.24, June 2009). BTO Research Report 407, BTO, Thetford (http://www.bto.org/birdfacts)

 

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