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gptkbp:instance_of
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gptkb:bird
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gptkbp:bfsLayer
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4
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gptkbp:bfsParent
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gptkb:Family_Laridae
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gptkbp:behavior
|
colonial
aggressive towards intruders
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gptkbp:breeding_season
|
monogamous
spring to summer
precocial
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gptkbp:calls_for
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trumpet-like
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gptkbp:color
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gptkb:black
white and gray
black cap on head
red with black tip
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gptkbp:conservation_status
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gptkb:Least_Concern
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gptkbp:cultural_significance
|
symbol of coastal ecosystems
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gptkbp:diet
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gptkb:fish
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gptkbp:egg_color
|
speckled
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gptkbp:family
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gptkb:Laridae
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gptkbp:fishing_regulations
|
surface plunge diving
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gptkbp:fledging_period
|
4-5 weeks
|
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gptkbp:foraging_behavior
|
regurgitation
dive for fish
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gptkbp:genus
|
gptkb:Sterna
|
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gptkbp:habitat
|
North America and Europe
coastal areas
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Common Tern
|
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gptkbp:incubation_period
|
21-28 days
|
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gptkbp:length
|
28-38 cm
|
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gptkbp:lifespan
|
up to 30 years
|
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gptkbp:mating_system
|
aerial displays
|
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gptkbp:migration
|
migratory
long-distance migratory
|
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gptkbp:nesting
|
ground-nesting
beaches and islands
grasses and seaweed
|
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gptkbp:population_trend
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gptkb:Professional_Wrestler
|
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gptkbp:predators
|
gulls and raptors
|
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gptkbp:related_species
|
gptkb:Roseate_Tern
gptkb:Arctic_Tern
gptkb:Forster's_Tern
|
|
gptkbp:social_structure
|
hierarchical
|
|
gptkbp:species
|
gptkb:Sterna_hirundo
|
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gptkbp:subspecies
|
gptkb:Sterna_hirundo_hirundo
gptkb:Sterna_hirundo_tibialis
gptkb:Sterna_hirundo_sandvicensis
|
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gptkbp:tail_type
|
forked tail
|
|
gptkbp:threats
|
pollution
habitat loss
human disturbance
|
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gptkbp:weight
|
80-150 g
|
|
gptkbp:wildlife
|
popular among birdwatchers
|
|
gptkbp:wingspan
|
80-90 cm
|
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gptkbp:wintering_range
|
South America and Africa
|
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gptkbp:young
|
chicks
|