Black-headed gull
E777972
The Black-headed gull is a small, migratory gull species common across Europe and Asia, easily recognized by its chocolate-brown summer head, red bill and legs, and loud, sociable colony behavior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black-headed gull canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9078256 — 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-headed gull Context triple: [Toshima, hasBirdSymbol, Black-headed 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.
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.
-
C.
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.
-
D.
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.
-
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: Black-headed gull Target entity description: The Black-headed gull is a small, migratory gull species common across Europe and Asia, easily recognized by its chocolate-brown summer head, red bill and legs, and loud, sociable colony behavior.
-
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.
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.
-
C.
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.
-
D.
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.
-
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 (59)
| Predicate | Object |
|---|---|
| instanceOf |
bird species
ⓘ
gull ⓘ |
| billColor | red ⓘ |
| binomialName | Chroicocephalus ridibundus NERFINISHED ⓘ |
| bodyLength | about 38–44 cm ⓘ |
| breedingHabitat |
coastal lagoons
ⓘ
lakes with reedbeds ⓘ marshes ⓘ |
| breedingRange |
temperate Asia
ⓘ
temperate Europe ⓘ |
| class | Aves NERFINISHED ⓘ |
| clutchSize | 2–3 eggs ⓘ |
| colonyNesting | true ⓘ |
| commonName |
Black-headed gull
NERFINISHED
ⓘ
Brown-headed gull (regional misnomer) ⓘ |
| describedBy | Carl Linnaeus ⓘ |
| diet | omnivorous ⓘ |
| distributionStatus | common across much of its range ⓘ |
| eggColor | buff with dark blotches ⓘ |
| family | Laridae NERFINISHED ⓘ |
| food |
crustaceans
ⓘ
earthworms ⓘ human food waste ⓘ insects ⓘ molluscs ⓘ seeds ⓘ small fish ⓘ |
| foragingBehavior |
following ploughs
ⓘ
ground feeding ⓘ surface dipping ⓘ |
| genus | Chroicocephalus NERFINISHED ⓘ |
| habitat |
agricultural land
ⓘ
coastal wetlands ⓘ inland lakes ⓘ reservoirs ⓘ rivers ⓘ urban areas ⓘ |
| IUCNStatus | Least Concern ⓘ |
| kingdom | Animalia ⓘ |
| legColor | red ⓘ |
| lifespanWild | up to about 30 years ⓘ |
| migratory | true ⓘ |
| nativeRange |
Asia
NERFINISHED
ⓘ
Europe NERFINISHED ⓘ |
| order | Charadriiformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| socialBehavior | highly gregarious ⓘ |
| summerHeadColor | chocolate-brown ⓘ |
| synonym | Larus ridibundus NERFINISHED ⓘ |
| taxonRank | species ⓘ |
| vocalization | loud laughing calls ⓘ |
| wingPattern | pale grey upperwings with black wing tips ⓘ |
| wingspan | about 94–105 cm ⓘ |
| winterHeadPattern | white head with dark ear-spot ⓘ |
| winteringRange |
Atlantic coasts
ⓘ
East Asia coasts ⓘ Mediterranean region NERFINISHED ⓘ South Asia NERFINISHED ⓘ |
| yearDescribed | 1766 ⓘ |
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-headed gull Description of subject: The Black-headed gull is a small, migratory gull species common across Europe and Asia, easily recognized by its chocolate-brown summer head, red bill and legs, and loud, sociable colony behavior.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.