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Bucephala clangula
Bucephala clangula (Linnaeus, 1758)
Common goldeneye
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Family:  Anatidae ()
Max. size:  49 cm TL (male/unsexed); max.weight: 900.0 g
Environment:  others; freshwater; marine; depth range 0 - 4 m
Distribution:  Arctic, Eastern Pacific and Western Atlantic: Winters from Aleutian Islands to Gulf of St Lawrence, to Californian Gulf, Mexican Gulf, Georgia south to Florida.
Diagnosis:  Culmen: 3.135 cm; tarsus: 8.105 cm; wing: 21.15 cm.
Biology:  Depth range and common depth based on occurrence (Ref. 115862). To be replaced with a better reference. Coastal (Ref. 356). Breeds in freshwater and along coasts (in Sweden and in the Gulf of Bothnia); nests in hollow trees or artificial nest-boxes. Martens (Martes martes) and jays (Garrulus glandarius) known to feed on its eggs. Ducklings preferentially feed in lakes. Main diet include Corixidae, Notonecta, Ephemerida larvae (mainly Leptophlebia vespertina), Dytiscidae adults (mainly Hyphydrus ovatus) and larvae (mainly Acilius and Dytiscus), and Chaoborus larvae (Ref. 95144). Displays dabbling behavior (Ref. 356). Common diving depth of 2 to 3 m (Ref. 115862).
IUCN Red List Status: (LC); Date assessed: 07 August 2018 Ref. 123251)
Threat to humans: 
Country info:   
 

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