|
gptkbp:instanceOf
|
gptkb:bird
|
|
gptkbp:adultColor
|
white
|
|
gptkbp:alternativeName
|
gptkb:Bewick's_swan
gptkb:whistling_swan
|
|
gptkbp:breedingSeason
|
Arctic tundra
|
|
gptkbp:clutchSize
|
3–7 eggs
|
|
gptkbp:conservationStatus
|
Least Concern
|
|
gptkbp:cygnetColor
|
gray
|
|
gptkbp:diet
|
herbivore
aquatic plants
grains
|
|
gptkbp:distinctiveFeature
|
white plumage
black bill with yellow spot
|
|
gptkbp:family
|
gptkb:Anatidae
|
|
gptkbp:firstDescribed
|
gptkb:William_Yarrell
1838
|
|
gptkbp:genus
|
gptkb:Cygnus
|
|
gptkbp:hasWings
|
up to 80 km/h
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
tundra swans
|
|
gptkbp:incubationPeriod
|
29–32 days
|
|
gptkbp:IUCNStatus
|
LC
|
|
gptkbp:length
|
115–150 cm
|
|
gptkbp:lifespan
|
up to 24 years
|
|
gptkbp:migratory
|
true
up to 6,000 km
Arctic to southern US
Arctic to western Europe
|
|
gptkbp:nativeRange
|
gptkb:Eurasia
gptkb:North_America
|
|
gptkbp:nestType
|
ground nest
|
|
gptkbp:notableWinteringArea
|
gptkb:British_Isles
gptkb:Netherlands
gptkb:California_Central_Valley
Chesapeake Bay
|
|
gptkbp:order
|
gptkb:Anseriformes
|
|
gptkbp:pairBond
|
monogamous
|
|
gptkbp:population
|
gptkb:standard
|
|
gptkbp:predators
|
eagles
foxes
gulls
|
|
gptkbp:protectedBy
|
gptkb:Migratory_Bird_Treaty_Act
|
|
gptkbp:scientificName
|
gptkb:Cygnus_columbianus
|
|
gptkbp:sexualDimorphism
|
minimal
|
|
gptkbp:subspecies
|
gptkb:Cygnus_columbianus_bewickii
gptkb:Cygnus_columbianus_columbianus
|
|
gptkbp:vocalization
|
high-pitched honking
|
|
gptkbp:weight
|
3.4–9.6 kg
|
|
gptkbp:wingspan
|
168–211 cm
|
|
gptkbp:winteringRange
|
coastal wetlands
|
|
gptkbp:bfsParent
|
gptkb:Back_Bay_National_Wildlife_Refuge
|
|
gptkbp:bfsLayer
|
7
|