least tern
E541947
The least tern is a small migratory seabird of North and Central America, known for its slender build, sharp black-and-white head pattern, and nesting on open sandy or gravelly riverbanks and coastal beaches.
All labels observed (1)
| Label | Occurrences |
|---|---|
| least tern canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5694581 — 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: least tern Context triple: [Platte River, importantForSpecies, least tern]
-
A.
Kentish plover
The Kentish plover is a small, pale shorebird of sandy coasts and salt flats, known for its quick, darting movements and widespread breeding across Eurasia and North Africa.
-
B.
River Tern
The River Tern is a river in Shropshire, England, known as a tributary of the River Severn flowing through rural landscapes and historic market towns.
-
C.
piping plover
The piping plover is a small, sand-colored shorebird native to North America, known for nesting on sandy beaches and being listed as a threatened species due to habitat loss and human disturbance.
-
D.
Caspian tern
The Caspian tern is a large, powerful seabird and the world’s biggest tern species, known for its stout red bill and wide distribution across coastal and inland waters worldwide.
-
E.
lesser florican
The lesser florican is a small, endangered bustard species native to the Indian subcontinent, best known for the male’s spectacular leaping courtship display during the monsoon season.
- 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: least tern Target entity description: The least tern is a small migratory seabird of North and Central America, known for its slender build, sharp black-and-white head pattern, and nesting on open sandy or gravelly riverbanks and coastal beaches.
-
A.
Kentish plover
The Kentish plover is a small, pale shorebird of sandy coasts and salt flats, known for its quick, darting movements and widespread breeding across Eurasia and North Africa.
-
B.
River Tern
The River Tern is a river in Shropshire, England, known as a tributary of the River Severn flowing through rural landscapes and historic market towns.
-
C.
piping plover
The piping plover is a small, sand-colored shorebird native to North America, known for nesting on sandy beaches and being listed as a threatened species due to habitat loss and human disturbance.
-
D.
Caspian tern
The Caspian tern is a large, powerful seabird and the world’s biggest tern species, known for its stout red bill and wide distribution across coastal and inland waters worldwide.
-
E.
lesser florican
The lesser florican is a small, endangered bustard species native to the Indian subcontinent, best known for the male’s spectacular leaping courtship display during the monsoon season.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
bird species
ⓘ
tern ⓘ |
| averageLength | about 22–24 cm ⓘ |
| averageMass | about 40–55 g ⓘ |
| averageWingspan | about 50 cm ⓘ |
| billColor | yellow bill with black tip in breeding season ⓘ |
| binomialName | Sternula antillarum NERFINISHED ⓘ |
| bodySize | small ⓘ |
| breedingRange |
coastal North America
ⓘ
inland river systems of North America ⓘ |
| breedingSystem | monogamous during breeding season ⓘ |
| class | Aves NERFINISHED ⓘ |
| commonName | least tern ⓘ |
| conservationStatus | varies regionally ⓘ |
| diet |
crustaceans
ⓘ
small fish ⓘ |
| eggColor | buff to sand-colored with dark speckles ⓘ |
| family | Laridae NERFINISHED ⓘ |
| foragingBehavior | plunge-diving for fish near the water surface ⓘ |
| genus | Sternula NERFINISHED ⓘ |
| habitat |
coastal beaches
ⓘ
gravelly riverbanks ⓘ salt flats ⓘ sandbars ⓘ sandy riverbanks ⓘ |
| headPattern | black cap with white forehead ⓘ |
| kingdom | Animalia ⓘ |
| legColor | yellow legs ⓘ |
| migratoryBehavior | migratory ⓘ |
| nativeRange |
Central America
NERFINISHED
ⓘ
North America NERFINISHED ⓘ |
| nestingSite |
open gravelly areas
ⓘ
open sandy areas ⓘ |
| nestType | shallow scrape on ground ⓘ |
| nonBreedingRange |
Caribbean region
NERFINISHED
ⓘ
coasts of Central America ⓘ |
| order | Charadriiformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| plumage | slender build with pale gray upperparts and white underparts ⓘ |
| previousScientificName | Sterna antillarum NERFINISHED ⓘ |
| reproduction | lays 1–3 eggs per clutch ⓘ |
| scientificName | Sternula antillarum NERFINISHED ⓘ |
| socialBehavior | colonial nester ⓘ |
| taxonRank | species ⓘ |
| threats |
coastal development
ⓘ
habitat loss ⓘ human disturbance at nesting sites ⓘ predation on eggs and chicks ⓘ river regulation and damming ⓘ |
| vocalization | high-pitched, sharp calls ⓘ |
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: least tern Description of subject: The least tern is a small migratory seabird of North and Central America, known for its slender build, sharp black-and-white head pattern, and nesting on open sandy or gravelly riverbanks and coastal beaches.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.