swallow-tailed gull
E771628
The swallow-tailed gull is a nocturnal seabird of the Galápagos Islands, notable for its deeply forked tail and specialized night vision adapted for feeding on squid at sea.
All labels observed (1)
| Label | Occurrences |
|---|---|
| swallow-tailed gull canonical | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T8984956 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: swallow-tailed gull Context triple: [Española Island, hasFauna, swallow-tailed gull]
-
A.
Black-tailed gull
The Black-tailed gull is a medium-sized East Asian gull species known for its distinctive black-tipped tail and yellow bill with a red and black spot.
-
B.
western gull
The western gull is a large, robust gull native to the Pacific coast of North America, commonly found along rocky shorelines, beaches, and offshore islands.
-
C.
Hartlaub's gull
Hartlaub's gull is a small, coastal gull species native to southern Africa, commonly found along the Atlantic shores and islands such as Dassen Island.
-
D.
ring-billed gull
The ring-billed gull is a common North American medium-sized gull easily recognized by the distinct black ring around its yellow bill and its frequent presence in urban and inland areas.
-
E.
Audouin's gull
Audouin's gull is a rare Mediterranean seabird species known for its pale plumage, dark bill, and conservation-dependent breeding colonies along coastal and island habitats.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: swallow-tailed gull Target entity description: The swallow-tailed gull is a nocturnal seabird of the Galápagos Islands, notable for its deeply forked tail and specialized night vision adapted for feeding on squid at sea.
-
A.
Black-tailed gull
The Black-tailed gull is a medium-sized East Asian gull species known for its distinctive black-tipped tail and yellow bill with a red and black spot.
-
B.
western gull
The western gull is a large, robust gull native to the Pacific coast of North America, commonly found along rocky shorelines, beaches, and offshore islands.
-
C.
Hartlaub's gull
Hartlaub's gull is a small, coastal gull species native to southern Africa, commonly found along the Atlantic shores and islands such as Dassen Island.
-
D.
ring-billed gull
The ring-billed gull is a common North American medium-sized gull easily recognized by the distinct black ring around its yellow bill and its frequent presence in urban and inland areas.
-
E.
Audouin's gull
Audouin's gull is a rare Mediterranean seabird species known for its pale plumage, dark bill, and conservation-dependent breeding colonies along coastal and island habitats.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
bird
ⓘ
gull ⓘ |
| activityPattern | nocturnal ⓘ |
| adaptation |
enhanced night vision for detecting prey at sea
ⓘ
nocturnal foraging to avoid competition with other seabirds ⓘ |
| billColor | black bill with white tip ⓘ |
| breedingPlumageFeature | black head ⓘ |
| breedsIn | Galápagos Islands ⓘ |
| class | Aves ⓘ |
| commonName | swallow-tailed gull ⓘ |
| conservationStatus | Least Concern ⓘ |
| conservationStatusSystem |
IUCN Red List
ⓘ
linked to:
IUCN Red List of Threatened Species
|
| describedInYear | 1818 ⓘ |
| diet |
small fish
ⓘ
squid ⓘ |
| endemicTo | Galápagos Islands ⓘ |
| eyeAdaptation | large eyes adapted for low light ⓘ |
| eyeRingColor | bright red ⓘ |
| family | Laridae ⓘ |
| flightBehavior | strong flier over open ocean ⓘ |
| foragingStrategy | pelagic feeding at sea ⓘ |
| genus |
Creagrus
ⓘ
linked to:
Creagrus furcatus
|
| geographicRange |
eastern tropical Pacific Ocean
ⓘ
linked to:
eastern North Pacific Ocean
|
| habitat |
marine environment
ⓘ
offshore waters ⓘ rocky cliffs ⓘ |
| kingdom | Animalia ⓘ |
| legColor | dark legs ⓘ |
| namedBy |
Louis Jean Pierre Vieillot
ⓘ
linked to:
Louis Pierre Vieillot
|
| nativeTo | Galápagos Islands ⓘ |
| nestSite | rocky ledges ⓘ |
| nonBreedingPlumageFeature | white head with dark eye smudge ⓘ |
| nonBreedingRange | offshore waters of the eastern Pacific ⓘ |
| notableFeature |
deeply forked tail
ⓘ
specialized night vision ⓘ |
| order | Charadriiformes ⓘ |
| parentTaxon | Creagrus furcatus ⓘ |
| phylum | Chordata ⓘ |
| plumageColor |
gray upperparts
ⓘ
white underparts ⓘ |
| reproduction | lays a single egg per breeding attempt ⓘ |
| scientificName | Creagrus furcatus ⓘ |
| socialBehavior | colonial nester ⓘ |
| taxonRank | species ⓘ |
| vocalizationContext | colonial breeding sites ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: swallow-tailed gull Description of subject: The swallow-tailed gull is a nocturnal seabird of the Galápagos Islands, notable for its deeply forked tail and specialized night vision adapted for feeding on squid at sea.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.