Anas acuta
E900234
Anas acuta, commonly known as the northern pintail, is a widespread and elegant dabbling duck species recognized for its slender neck, long pointed tail, and extensive migratory range across the Northern Hemisphere.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Anas acuta canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11017041 — 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: Anas acuta Context triple: [Northern pintail, species, Anas acuta]
-
A.
Rallus aquaticus
Rallus aquaticus, commonly known as the water rail, is a secretive wetland bird found across Europe, North Africa, and parts of Asia, recognized for its laterally compressed body and distinctive squealing calls.
-
B.
Avocettina infans
Avocettina infans is a species of slender, deep-sea snipe eel in the family Nemichthyidae, known for its elongated body and pelagic oceanic habitat.
-
C.
Anas
Anas is a masculine given name of Arabic origin commonly used across the Muslim world.
-
D.
Hamerkop
The Hamerkop is a medium-sized African wading bird known for its hammer-shaped head and large, elaborate nest structures.
-
E.
Tachybaptus ruficollis
Tachybaptus ruficollis, commonly known as the little grebe or dabchick, is a small aquatic diving bird widespread across Europe, Asia, and Africa.
- 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: Anas acuta Target entity description: Anas acuta, commonly known as the northern pintail, is a widespread and elegant dabbling duck species recognized for its slender neck, long pointed tail, and extensive migratory range across the Northern Hemisphere.
-
A.
Rallus aquaticus
Rallus aquaticus, commonly known as the water rail, is a secretive wetland bird found across Europe, North Africa, and parts of Asia, recognized for its laterally compressed body and distinctive squealing calls.
-
B.
Avocettina infans
Avocettina infans is a species of slender, deep-sea snipe eel in the family Nemichthyidae, known for its elongated body and pelagic oceanic habitat.
-
C.
Anas
Anas is a masculine given name of Arabic origin commonly used across the Muslim world.
-
D.
Hamerkop
The Hamerkop is a medium-sized African wading bird known for its hammer-shaped head and large, elaborate nest structures.
-
E.
Tachybaptus ruficollis
Tachybaptus ruficollis, commonly known as the little grebe or dabchick, is a small aquatic diving bird widespread across Europe, Asia, and Africa.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bird
ⓘ
dabbling duck ⓘ duck ⓘ species ⓘ |
| binomialName | Anas acuta ⓘ |
| bodySize | medium-sized duck ⓘ |
| breedingRange |
northern Asia
ⓘ
northern Europe ⓘ northern North America ⓘ |
| class | Aves NERFINISHED ⓘ |
| clutchSize | 7–9 eggs (typical) ⓘ |
| commonName |
northern pintail
NERFINISHED
ⓘ
pintail ⓘ |
| conservationStatus | Least Concern ⓘ |
| conservationStatusSystem | IUCN Red List NERFINISHED ⓘ |
| describedBy | Carl Linnaeus ⓘ |
| diet |
aquatic plants
ⓘ
invertebrates ⓘ seeds ⓘ |
| distribution |
Asia
ⓘ
Europe NERFINISHED ⓘ North America ⓘ Northern Hemisphere NERFINISHED ⓘ |
| family | Anatidae NERFINISHED ⓘ |
| feedingType | dabbling ⓘ |
| genus | Anas ⓘ |
| habitat |
coastal lagoons
ⓘ
marshes ⓘ shallow lakes ⓘ wetlands ⓘ |
| kingdom | Animalia ⓘ |
| malePlumage |
chocolate-brown head
ⓘ
grey body ⓘ white neck stripe ⓘ |
| migrationPattern | long-distance migrant ⓘ |
| neckCharacteristic | slender neck ⓘ |
| nestLocation | on the ground ⓘ |
| notableFeature |
elegant, streamlined appearance
ⓘ
swift, agile flight ⓘ |
| order | Anseriformes NERFINISHED ⓘ |
| sexualDimorphism | present ⓘ |
| tailCharacteristic | long pointed central tail feathers in male ⓘ |
| taxonRank | species ⓘ |
| threat |
habitat loss
ⓘ
hunting pressure ⓘ |
| winteringRange |
subtropical regions
ⓘ
temperate regions ⓘ |
| yearDescribed | 1758 ⓘ |
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: Anas acuta Description of subject: Anas acuta, commonly known as the northern pintail, is a widespread and elegant dabbling duck species recognized for its slender neck, long pointed tail, and extensive migratory range across the Northern Hemisphere.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Northern pintail
subject surface form:
Northern pintail