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gptkbp:instanceOf
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gptkb:bird
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gptkbp:breedingPlumage
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males have bright blue bills and chestnut bodies
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gptkbp:category
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stiff-tailed duck
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gptkbp:clutchSize
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5–15
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gptkbp:commonName
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gptkb:Ruddy_duck
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gptkbp:conservationStatus
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Least Concern
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gptkbp:controls
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subject to culling in Europe to protect white-headed duck
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gptkbp:diet
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seeds
aquatic invertebrates
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gptkbp:ducklingIndependence
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fledge at 50–55 days
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gptkbp:family
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gptkb:Anatidae
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gptkbp:femaleDescription
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brownish with pale cheeks and dark line across cheek
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gptkbp:firstDescribed
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gptkb:Johann_Friedrich_Gmelin
1789
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gptkbp:genus
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gptkb:Oxyura
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gptkbp:habitat
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lakes
marshes
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|
https://www.w3.org/2000/01/rdf-schema#label
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Ruddy duck
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gptkbp:hybridizationRisk
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can hybridize with white-headed duck
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gptkbp:incubationPeriod
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23–26 days
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gptkbp:introduced
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gptkb:Europe
gptkb:United_Kingdom
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gptkbp:IUCNStatus
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22679813
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gptkbp:length
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35–43 cm
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gptkbp:lifespan
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up to 13 years in the wild
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gptkbp:maleDescription
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dull gray bill, duller body (non-breeding)
bright blue bill, chestnut body, white cheeks (breeding)
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gptkbp:migratory
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yes
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gptkbp:nativeRange
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gptkb:North_America
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gptkbp:nesting
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builds nests in dense vegetation near water
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gptkbp:notableFeature
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blue bill (male breeding plumage)
stiff tail
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gptkbp:order
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gptkb:Anseriformes
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gptkbp:scientificName
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gptkb:Oxyura_jamaicensis
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gptkbp:sexualDimorphism
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males and females differ in plumage
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gptkbp:weight
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430–800 g
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gptkbp:wingspan
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58–62 cm
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gptkbp:bfsParent
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gptkb:Marine_Corps_Base_Camp_Pendleton
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gptkbp:bfsLayer
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5
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