Properties (54)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
bird
|
| gptkbp:airlines |
graceful and agile
|
| gptkbp:behavior |
aggressive during nesting
|
| gptkbp:breedingSeason |
spring to summer
aerial displays islands and coastal areas up to thousands |
| gptkbp:callsFor |
trumpet-like
|
| gptkbp:clutchSize |
1-4 eggs
|
| gptkbp:colors |
seasonal plumage changes
white and grey with black cap |
| gptkbp:commonName |
Common Tern
|
| gptkbp:conservationEfforts |
Least Concern
protected in many regions |
| gptkbp:culturalSignificance |
symbol of coastal ecosystems
|
| gptkbp:diet |
fish
|
| gptkbp:distribution |
Europe,_Asia,_North_America
|
| gptkbp:eggColor |
white with brown spots
30-35 g 38-42 mm |
| gptkbp:family |
Laridae
|
| gptkbp:fishSpecies |
plunge diving
|
| gptkbp:fledgingPeriod |
3-4 weeks
|
| gptkbp:foragingBehavior |
dive for fish
|
| gptkbp:genus |
Sterna
|
| gptkbp:habitat |
coastal areas
|
| https://www.w3.org/2000/01/rdf-schema#label |
Sterna hirundo hirundo
|
| gptkbp:humanInteraction |
affected by fishing practices
|
| gptkbp:length |
30-36 cm
|
| gptkbp:lifespan |
up to 30 years
|
| gptkbp:migration |
gptkb:Atlantic_Ocean
migratory long-distance migratory |
| gptkbp:nesting |
foxes, raccoons
ground-nesting scrape nests in sand grasses, seaweed |
| gptkbp:officialResidence |
popular among birdwatchers
|
| gptkbp:order |
Charadriiformes
|
| gptkbp:parent |
both parents care for young
|
| gptkbp:predators |
gulls, raptors
|
| gptkbp:relatedPatent |
gptkb:Sterna_paradisaea
Sterna dougallii |
| gptkbp:researchInterest |
studied for migration patterns
|
| gptkbp:rootSystem |
sandy beaches
|
| gptkbp:seasonalActivities |
coastal_Africa,_South_America
|
| gptkbp:socialResponsibility |
colonial
|
| gptkbp:socialStructure |
flocks
|
| gptkbp:subspecies |
gptkb:Sterna_hirundo_hirundo
gptkb:Sterna_hirundo_longipennis |
| gptkbp:threats |
habitat loss, pollution
|
| gptkbp:vocalization |
varied calls
|
| gptkbp:weight |
80-150 g
|
| gptkbp:wingspan |
70-80 cm
|