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gptkbp:instanceOf
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bird
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gptkbp:adultPlumage
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brown and mottled
acquired after first year
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gptkbp:behavior
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aggressive during nesting
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gptkbp:breedingSeason
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aerial displays
April to August
sandy or gravelly areas
up to 100 pairs
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gptkbp:callsFor
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a loud, harsh sound
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gptkbp:clutchSize
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2 to 4 eggs
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gptkbp:colors
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orange
dark brown
white and black
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gptkbp:commonName
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gptkb:African_Skimmer
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gptkbp:conservationEfforts
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Least Concern
protected areas
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gptkbp:cookingMethod
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diurnal
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gptkbp:culturalSignificance
|
featured in local folklore
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gptkbp:diet
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fish
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gptkbp:eggColor
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white
about 3 weeks
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gptkbp:environmentalImpact
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sensitive to changes
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gptkbp:family
|
Laridae
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gptkbp:firstDescribedBy
|
by_Linnaeus_in_1766
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gptkbp:fishSpecies
|
dive and catch
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gptkbp:fledgingPeriod
|
about 4 weeks
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gptkbp:foragingBehavior
|
skimming
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gptkbp:genus
|
Sterna
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gptkbp:geographicalFeature
|
Africa
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gptkbp:habitat
|
riverbanks
open areas near water
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|
https://www.w3.org/2000/01/rdf-schema#label
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Sterna nilotica
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gptkbp:humanInteraction
|
disturbance at nesting sites
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gptkbp:length
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30 to 35 cm
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gptkbp:lifespan
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up to 10 years
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gptkbp:matingSystem
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monogamous
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gptkbp:migration
|
irregular
partial migrant
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gptkbp:nesting
|
variable
foxes
ground
scrapes in sand
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gptkbp:populationTrend
|
stable
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gptkbp:predators
|
birds of prey
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gptkbp:relatedPatent
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gptkb:Sterna_paradisaea
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gptkbp:relatedTo
|
gptkb:Sterna_hirundo
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gptkbp:researchAreas
|
studied for ecology
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gptkbp:seasonalActivities
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coastal areas
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gptkbp:skin
|
yellow
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gptkbp:socialResponsibility
|
colonial
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gptkbp:socialStructure
|
loose flocks
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gptkbp:subspecies
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gptkb:Sterna_nilotica_nilotica
gptkb:Sterna_nilotica_arcticus
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gptkbp:territory
|
defends nesting area
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gptkbp:threats
|
habitat loss
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gptkbp:vocalization
|
varied calls
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gptkbp:weight
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150 to 250 g
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gptkbp:wingspan
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70 to 80 cm
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