cerulean warbler
E452410
The cerulean warbler is a small, sky-blue migratory songbird native to eastern North America, known for its preference for mature deciduous forests and its declining populations due to habitat loss.
All labels observed (1)
| Label | Occurrences |
|---|---|
| cerulean warbler canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4565670 — 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: cerulean warbler Context triple: [Carolinian forest, hasFauna, cerulean warbler]
-
A.
Mountain bluebird
The Mountain bluebird is a small, bright sky-blue thrush native to western North America, often found in open habitats such as meadows and prairies.
-
B.
Cassin’s Vireo
Cassin’s Vireo is a small North American songbird in the vireo family, recognized for its gray head, white “spectacles,” and preference for open coniferous and mixed woodlands.
-
C.
Western bluebird
The Western bluebird is a small North American thrush known for the male’s bright blue plumage with a rusty-orange chest and its preference for open woodlands and nest boxes.
-
D.
Cassin’s Kingbird
Cassin’s Kingbird is a large, gray-and-yellow North American tyrant flycatcher notable for its bold behavior and distinctive white tail edges.
-
E.
eastern bluebird
The eastern bluebird is a small North American thrush known for the male’s bright blue plumage and rusty-red breast, commonly seen in open woodlands, fields, and along fence lines.
- 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: cerulean warbler Target entity description: The cerulean warbler is a small, sky-blue migratory songbird native to eastern North America, known for its preference for mature deciduous forests and its declining populations due to habitat loss.
-
A.
Mountain bluebird
The Mountain bluebird is a small, bright sky-blue thrush native to western North America, often found in open habitats such as meadows and prairies.
-
B.
Cassin’s Vireo
Cassin’s Vireo is a small North American songbird in the vireo family, recognized for its gray head, white “spectacles,” and preference for open coniferous and mixed woodlands.
-
C.
Western bluebird
The Western bluebird is a small North American thrush known for the male’s bright blue plumage with a rusty-orange chest and its preference for open woodlands and nest boxes.
-
D.
Cassin’s Kingbird
Cassin’s Kingbird is a large, gray-and-yellow North American tyrant flycatcher notable for its bold behavior and distinctive white tail edges.
-
E.
eastern bluebird
The eastern bluebird is a small North American thrush known for the male’s bright blue plumage and rusty-red breast, commonly seen in open woodlands, fields, and along fence lines.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
New World warbler
ⓘ
bird species ⓘ migratory songbird ⓘ |
| authority | (Wilson, 1810) ⓘ |
| binomialName | Setophaga cerulea NERFINISHED ⓘ |
| bodyLength | about 11 cm ⓘ |
| bodyMass | about 8–10 g ⓘ |
| breedingSystem | monogamous (typically) ⓘ |
| breedsIn |
eastern United States
NERFINISHED
ⓘ
southern Canada ⓘ |
| class | Aves NERFINISHED ⓘ |
| clutchSize | 3–5 eggs ⓘ |
| commonName | cerulean warbler NERFINISHED ⓘ |
| conservationStatus | Near Threatened ⓘ |
| conservationStatusSystem | IUCN Red List NERFINISHED ⓘ |
| diet |
arthropods
ⓘ
insects ⓘ |
| eggColor | pale with brown speckling ⓘ |
| family | Parulidae NERFINISHED ⓘ |
| foragingStratum | forest canopy ⓘ |
| genus | Setophaga NERFINISHED ⓘ |
| habitat |
large forest tracts
ⓘ
mature deciduous forests ⓘ mixed hardwood forests ⓘ |
| kingdom | Animalia ⓘ |
| migratoryBehavior | long-distance migrant ⓘ |
| monitoredBy | bird conservation organizations ⓘ |
| nativeTo | eastern North America ⓘ |
| nestLocation | high in canopy ⓘ |
| nestType | open cup nest ⓘ |
| order | Passeriformes ⓘ |
| plumageColor |
bluish-green upperparts (female)
ⓘ
sky blue (adult male upperparts) ⓘ white underparts with blue streaking (male) ⓘ yellowish wash on underparts (female) ⓘ |
| populationTrend | decreasing ⓘ |
| primaryThreat |
forest fragmentation
ⓘ
habitat loss ⓘ loss of breeding habitat in North America ⓘ loss of wintering habitat in South America ⓘ |
| rangeRegion |
Appalachian region
ⓘ
Great Lakes region NERFINISHED ⓘ Mississippi River valley NERFINISHED ⓘ |
| scientificName | Setophaga cerulea NERFINISHED ⓘ |
| sexualDimorphism | present ⓘ |
| songType | high-pitched buzzy trill ⓘ |
| subjectOf | conservation management plans ⓘ |
| taxonRank | species ⓘ |
| wintersIn |
Andean foothills
NERFINISHED
ⓘ
northern South America ⓘ |
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: cerulean warbler Description of subject: The cerulean warbler is a small, sky-blue migratory songbird native to eastern North America, known for its preference for mature deciduous forests and its declining populations due to habitat loss.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.