Heermann’s gull
E776213
Heermann’s gull is a medium-sized, gray-and-white seabird of the Pacific coast, especially abundant in the Gulf of California where it breeds in large colonies.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Heermann’s gull canonical | 2 |
| Heermann gull | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9072666 — 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: Heermann’s gull Context triple: [Isla Rasa Reserve, habitatOf, Heermann’s 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.
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.
-
C.
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.
-
D.
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.
-
E.
California gull
The California gull is a medium-sized North American gull species best known for its historic role in saving early Mormon settlers’ crops in Utah from a devastating insect infestation.
- 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: Heermann’s gull Target entity description: Heermann’s gull is a medium-sized, gray-and-white seabird of the Pacific coast, especially abundant in the Gulf of California where it breeds in large colonies.
-
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.
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.
-
C.
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.
-
D.
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.
-
E.
California gull
The California gull is a medium-sized North American gull species best known for its historic role in saving early Mormon settlers’ crops in Utah from a devastating insect infestation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bird species
ⓘ
gull ⓘ |
| authority |
Cassin, 1852
ⓘ
linked to:
Cassin
|
| averageLength | about 45 centimeters ⓘ |
| averageWingspan | about 110 centimeters ⓘ |
| billColor | red bill with black tip ⓘ |
| bodySize | medium-sized gull ⓘ |
| breedingRange | Isla Rasa, Gulf of California ⓘ |
| breedsIn | Gulf of California ⓘ |
| class | Aves ⓘ |
| clutchSize | 2–3 eggs ⓘ |
| commonName |
Heermann gull
ⓘ
linked to:
Heermann’s gull
Heermann’s gull ⓘ |
| conservationStatus | Near Threatened ⓘ |
| conservationStatusSystem |
IUCN Red List
ⓘ
linked to:
IUCN Red List of Threatened Species
|
| diet |
fish
ⓘ
marine invertebrates ⓘ scavenged food ⓘ |
| eggColor | speckled ⓘ |
| family | Laridae ⓘ |
| foragingBehavior | often steals prey from other seabirds ⓘ |
| genus | Larus ⓘ |
| habitat |
beaches
ⓘ
coastal waters ⓘ islands ⓘ rocky shores ⓘ |
| kingdom | Animalia ⓘ |
| legColor | dark legs ⓘ |
| migratesTo |
Pacific coast of the United States
ⓘ
linked to:
Pacific coast of North America
|
| migratoryBehavior | mostly migratory ⓘ |
| namedAfter | Adolphus Lewis Heermann ⓘ |
| nestType | ground nest ⓘ |
| nonBreedingRange |
Pacific coast of Mexico
ⓘ
Pacific coast of North America ⓘ coast of California ⓘ coast of Oregon ⓘ coast of Washington ⓘ |
| order | Charadriiformes ⓘ |
| phylum | Chordata ⓘ |
| plumageColor |
dusky head in nonbreeding plumage
ⓘ
gray body ⓘ white head in breeding plumage ⓘ |
| primaryThreats |
climate-related changes in food supply
ⓘ
disturbance at breeding colonies ⓘ extreme weather events at nesting islands ⓘ |
| scientificName |
Larus heermanni
ⓘ
linked to:
Larus
|
| socialBehavior | colonial breeder ⓘ |
| taxonRank | species ⓘ |
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: Heermann’s gull Description of subject: Heermann’s gull is a medium-sized, gray-and-white seabird of the Pacific coast, especially abundant in the Gulf of California where it breeds in large colonies.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Heermann’s gull