Hawaiian duck (koloa maoli)
E814967
The Hawaiian duck, or koloa maoli, is an endangered, mottled-brown dabbling duck endemic to the Hawaiian Islands and threatened by habitat loss and hybridization with introduced mallards.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Hawaiian duck | 1 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
bird
ⓘ
duck ⓘ endangered species ⓘ |
| billColor |
darker olive (female)
ⓘ
olive green (male) ⓘ |
| bodyLength | approximately 40–50 cm ⓘ |
| breedingSystem | monogamous or seasonally monogamous ⓘ |
| class | Aves ⓘ |
| clutchSize | typically 6–10 eggs ⓘ |
| coloration | mottled brown plumage ⓘ |
| commonName | koloa maoli ⓘ |
| conservationStatus | Endangered ⓘ |
| culturalSignificance | native Hawaiian species (koloa maoli) ⓘ |
| currentStrongholds |
Kauaʻi
NERFINISHED
ⓘ
Oʻahu (managed sites) ⓘ |
| diet |
aquatic invertebrates
ⓘ
aquatic plants ⓘ seeds ⓘ |
| endemicTo | Hawaiian Islands NERFINISHED ⓘ |
| family | Anatidae NERFINISHED ⓘ |
| foragingBehavior | dabbling ⓘ |
| habitat |
freshwater wetlands
ⓘ
irrigation ditches ⓘ marshes ⓘ streams ⓘ |
| historicalRange | all main Hawaiian Islands except Lānaʻi and Kahoʻolawe ⓘ |
| hybridizesWith | mallard ⓘ |
| incubation | performed by female ⓘ |
| introducedThreat | feral mallards ⓘ |
| IUCNStatus | Endangered ⓘ |
| kingdom | Animalia ⓘ |
| maleResembles | female ⓘ |
| managementAction |
captive breeding and release
ⓘ
mallard removal programs ⓘ wetland restoration ⓘ |
| nativeRange | Hawaii NERFINISHED ⓘ |
| nestSite | dense vegetation near water ⓘ |
| order | Anseriformes NERFINISHED ⓘ |
| recognizedBy | IUCN Red List NERFINISHED ⓘ |
| scientificName | Anas wyvilliana NERFINISHED ⓘ |
| sexualDimorphism | weak ⓘ |
| speculumColor | iridescent green to blue speculum ⓘ |
| taxonRank | species ⓘ |
| threatenedBy |
habitat loss
ⓘ
hunting (historically) ⓘ hybridization with mallards ⓘ introduced predators ⓘ |
| weight | approximately 500–700 g ⓘ |
| wingPattern | white-bordered speculum ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hawaiian duck