Black-tailed gull
E584751
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black-tailed gull canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6307817 — 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: Black-tailed gull Context triple: [Ōiso, hasBird, Black-tailed gull]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Kelp gull
The kelp gull is a large, coastal seabird of the Southern Hemisphere known for its black-and-white plumage, robust yellow bill, and opportunistic scavenging habits around shorelines and islands.
-
E.
herring gull
The herring gull is a large, widespread seabird of the Northern Hemisphere, known for its gray and white plumage, loud calls, and opportunistic scavenging behavior around coasts and urban areas.
- 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: Black-tailed gull Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Kelp gull
The kelp gull is a large, coastal seabird of the Southern Hemisphere known for its black-and-white plumage, robust yellow bill, and opportunistic scavenging habits around shorelines and islands.
-
E.
herring gull
The herring gull is a large, widespread seabird of the Northern Hemisphere, known for its gray and white plumage, loud calls, and opportunistic scavenging behavior around coasts and urban areas.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
bird species
ⓘ
gull ⓘ |
| billColor | yellow ⓘ |
| billMarkings |
black spot on bill
ⓘ
red spot on bill ⓘ |
| binomialName | Larus crassirostris NERFINISHED ⓘ |
| bodySize | medium-sized gull ⓘ |
| breedsIn |
Japan
NERFINISHED
ⓘ
Korean Peninsula NERFINISHED ⓘ Russian Far East NERFINISHED ⓘ |
| class | Aves ⓘ |
| clutchSize | 2 to 3 eggs ⓘ |
| commonIn | Japanese coastal cities ⓘ |
| describedBy | Louis Pierre Vieillot NERFINISHED ⓘ |
| diet |
crustaceans
ⓘ
fish ⓘ human food scraps ⓘ marine invertebrates ⓘ offal ⓘ |
| eggColor | olive-brown with dark spots ⓘ |
| family | Laridae NERFINISHED ⓘ |
| foragingBehavior |
scavenger
ⓘ
surface feeder ⓘ |
| genus | Larus NERFINISHED ⓘ |
| habitat |
coastal waters
ⓘ
harbors ⓘ offshore islands ⓘ rocky shores ⓘ |
| IUCNStatus | Least Concern ⓘ |
| kingdom | Animalia ⓘ |
| legColor | yellow ⓘ |
| migratoryStatus | partially migratory ⓘ |
| nativeTo |
East Asia
NERFINISHED
ⓘ
Japan NERFINISHED ⓘ Korea NERFINISHED ⓘ eastern China NERFINISHED ⓘ |
| nestType | ground nest ⓘ |
| notableFeature |
distinctive black-tipped tail
ⓘ
yellow bill with red and black spot ⓘ |
| order | Charadriiformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| socialBehavior | colonial nester ⓘ |
| tailColorPattern | black-tipped tail ⓘ |
| taxonRank | species ⓘ |
| vocalization | loud mewing call ⓘ |
| wintersIn |
East China Sea
NERFINISHED
ⓘ
South China Sea NERFINISHED ⓘ southern Japan ⓘ |
| yearDescribed | 1818 ⓘ |
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: Black-tailed gull Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.