Statements (55)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:bird
|
| gptkbp:bfsLayer |
4
|
| gptkbp:bfsParent |
gptkb:Family_Laridae
|
| gptkbp:adult_plumage |
brown and mottled
white with gray wings |
| gptkbp:behavior |
territorial during breeding season
protective of young often seen in colonies |
| gptkbp:breeding_season |
spring to summer
|
| gptkbp:calls_for |
harsh and loud
|
| gptkbp:clutch_size |
typically 1 to 3 eggs
|
| gptkbp:color |
white and gray
red with a black tip distinctive black cap on head |
| gptkbp:conservation_efforts |
monitored by bird conservation organizations
|
| gptkbp:conservation_status |
gptkb:Least_Concern
|
| gptkbp:cultural_significance |
featured in local folklore
|
| gptkbp:diet |
gptkb:fish
|
| gptkbp:distribution |
worldwide except for extreme polar regions
|
| gptkbp:egg_color |
speckled brown
|
| gptkbp:family |
gptkb:Laridae
|
| gptkbp:first_flight |
strong and direct
|
| gptkbp:fishing_regulations |
hovering before diving
|
| gptkbp:fledging_period |
about 6 weeks
|
| gptkbp:foraging_behavior |
dive for fish
plunge diving |
| gptkbp:genus |
Hydroprogne
|
| gptkbp:habitat |
coastal regions
near water bodies North America, Europe, Asia, Africa |
| https://www.w3.org/2000/01/rdf-schema#label |
Caspian Tern
|
| gptkbp:incubation_period |
about 28 days
|
| gptkbp:interacts_with |
often seen near fishing areas
|
| gptkbp:lifespan |
up to 20 years
|
| gptkbp:mating_system |
aerial displays and calls
|
| gptkbp:migration |
varies by region
long-distance migrator migratory bird |
| gptkbp:nesting |
ground-nesting
scrapes in sand or gravel sandy beaches and islands affected by predation and human disturbance |
| gptkbp:population_trend |
stable in many areas
|
| gptkbp:predators |
gulls and raptors
|
| gptkbp:related_species |
gptkb:Royal_Tern
gptkb:Common_Tern |
| gptkbp:research_interest |
studied for migration patterns
|
| gptkbp:social_structure |
monogamous during breeding season
|
| gptkbp:species |
gptkb:Hydroprogne_caspia
|
| gptkbp:subspecies |
several recognized subspecies
|
| gptkbp:threats |
habitat loss
|
| gptkbp:vision |
excellent eyesight for spotting fish
|
| gptkbp:weight |
0.5 to 1.5 kg
|
| gptkbp:wingspan |
up to 1.5 meters
|
| gptkbp:wintering_range |
warmer coastal areas
|