Histrionicus histrionicus (Linnaeus, 1758)
Harlequin duck
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Family:  Anatidae ()
Max. size:  46 cm TL (male/unsexed); max.weight: 622.5 g
Environment:  others; brackish; marine; depth range 0 - 1 m
Distribution:  Northeast Pacific, Northeast Atlantic and the Arctic. Temperate to polar.
Diagnosis:  Culmen: 2.555 cm; tarsus: 3.675 cm; wing: 20.15 cm (Ref. 356). Medium-sized duck; male: blue overall; white slashes on shoulder, neck and back; white spots on head and neck; chestnut flanks; female: brown overall; white ear spot (Ref. 94965).
Biology:  Depth range based on occurrence (Ref. 115936), to be replaced with a better reference. Surface diving; dabbling; coastal. Diet: Crabs (mainly Hemigrapsus nudus, Pagurus spp.), gastropods, polychaetes, amphipods, chitons, Mytilus edulis, limpets, barnacles, Clupea pallasi (eggs) and algae (Ref. 3985).
IUCN Red List Status: (LC); Date assessed: 07 August 2018 Ref. 123251)
Threat to humans: 
Country info:   
 

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