Opisthocomiformes
E179360
Opisthocomiformes is an order of birds best known for containing the hoatzin, a unique, leaf-eating species native to the swamps and forests of the Amazon and Orinoco basins.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Opisthocomiformes canonical | 5 |
| Opisthocomidae | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1584363 — 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: Opisthocomiformes Context triple: [Aves, hasSubgroup, Opisthocomiformes]
-
A.
Otidiformes
Otidiformes is an order of large, ground-dwelling birds known as bustards, found mainly in open grassland and semi-arid habitats across the Old World.
-
B.
Apodiformes
Apodiformes is an order of small, fast-flying birds that includes hummingbirds and swifts, known for their rapid wingbeats and exceptional aerial agility.
-
C.
Whippomorpha
Whippomorpha is a mammalian clade that includes whales, dolphins, and hippopotamuses, uniting these seemingly disparate animals based on shared evolutionary ancestry.
-
D.
Passeriformes
Passeriformes is the largest order of birds, commonly known as perching birds or songbirds, encompassing over half of all bird species worldwide.
-
E.
Phoenicopteriformes
Phoenicopteriformes is the bird order that comprises flamingos, characterized by their long legs, specialized filter-feeding bills, and often striking pink plumage.
- 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: Opisthocomiformes Target entity description: Opisthocomiformes is an order of birds best known for containing the hoatzin, a unique, leaf-eating species native to the swamps and forests of the Amazon and Orinoco basins.
-
A.
Otidiformes
Otidiformes is an order of large, ground-dwelling birds known as bustards, found mainly in open grassland and semi-arid habitats across the Old World.
-
B.
Apodiformes
Apodiformes is an order of small, fast-flying birds that includes hummingbirds and swifts, known for their rapid wingbeats and exceptional aerial agility.
-
C.
Whippomorpha
Whippomorpha is a mammalian clade that includes whales, dolphins, and hippopotamuses, uniting these seemingly disparate animals based on shared evolutionary ancestry.
-
D.
Passeriformes
Passeriformes is the largest order of birds, commonly known as perching birds or songbirds, encompassing over half of all bird species worldwide.
-
E.
Phoenicopteriformes
Phoenicopteriformes is the bird order that comprises flamingos, characterized by their long legs, specialized filter-feeding bills, and often striking pink plumage.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
bird order
ⓘ
taxonomic rank ⓘ |
| activityPattern | diurnal ⓘ |
| bodyMassRange | approximately 500–900 grams ⓘ |
| class | Aves ⓘ |
| commonName | hoatzin order ⓘ |
| conservationStatus | order not considered globally threatened ⓘ |
| containsTaxon |
Opisthocomus hoazin
ⓘ
surface form:
Opisthocomus
Opisthocomus hoazin ⓘ |
| diet | herbivorous ⓘ |
| foragingStratum | canopy and subcanopy vegetation ⓘ |
| geographicDistribution | South America ⓘ |
| hasCharacteristic |
arboreal lifestyle
ⓘ
elongated body and tail ⓘ small head with crest ⓘ specialized foregut fermentation of leaves ⓘ strong odor associated with fermentation ⓘ weak flight capability ⓘ |
| historicallyLinkedTo |
Cuculiformes
ⓘ
Galliformes ⓘ Gruiformes ⓘ Opisthocomiformes–Cuculiformes clade hypotheses ⓘ |
| kingdom | Animalia ⓘ |
| locomotionOfYoung | climbing using wing claws ⓘ |
| monotypicStatus | often treated as monotypic order ⓘ |
| nativeRange |
Amazon Basin
ⓘ
Orinoco Basin ⓘ |
| nestSite | branches overhanging water ⓘ |
| notableFor | containing the hoatzin ⓘ |
| notableTraitInYoung | functional wing claws in chicks ⓘ |
| parentalCare | biparental care ⓘ |
| phylum | Chordata ⓘ |
| primaryFoodSource | young leaves ⓘ |
| region |
Neotropical realm
ⓘ
surface form:
Neotropics
|
| representativeSpecies | hoatzin ⓘ |
| reproduction |
altricial chicks
ⓘ
lays eggs in nests over water ⓘ |
| secondaryFoodSource |
buds
ⓘ
fruits ⓘ |
| socialBehavior |
colonial nesting
ⓘ
often found in small groups ⓘ |
| systematicsStatus |
phylogenetically enigmatic
ⓘ
position within Neoaves debated ⓘ |
| typicalDiet | leaves ⓘ |
| typicalHabitat |
mangroves
ⓘ
riverine forests ⓘ swamps ⓘ |
| vocalization |
grunts and hisses
ⓘ
loud 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: Opisthocomiformes Description of subject: Opisthocomiformes is an order of birds best known for containing the hoatzin, a unique, leaf-eating species native to the swamps and forests of the Amazon and Orinoco basins.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.