| Millerbird | |
|---|---|
| |
| At Laysan, Northwestern Hawaiian Islands, USA | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Acrocephalidae |
| Genus: | Acrocephalus |
| Species: | A. familiaris
|
| Binomial name | |
| Acrocephalus familiaris (Rothschild, 1892)
| |
| Subspecies | |
| |
The millerbird (Acrocephalus familiaris) is a species of Old World warbler in the family Acrocephalidae endemic to the Hawaiian Islands.
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Transcription
Taxonomy
It has two subspecies, A. f. kingi and A f. familiaris. The nominate subspecies, the Laysan millerbird, became extinct sometime between 1916 and 1923. The other, the critically endangered Nihoa millerbird, is the only race left, inhabiting the small island of Nihoa in Hawaiʻi, though it has since been reintroduced to Laysan. It is the only Old World warbler to have colonised Hawaiʻi, and there is no fossil evidence that the species ever had a distribution beyond these two islands.
Behavior and breeding
Millerbirds form long-term pair bonds and defend territories over a number of years. Territories can be as large as 0.95 hectares (2.3 acres), although 0.19–0.40 hectares (0.47–0.99 acres) is more typical. Breeding occurs variably from January to September depending on food availability.
Identification
A small warbler that occurs only on Nihoa and Laysan in the Northwestern Hawaiian Islands. It is unlikely to be confused with any other species; the only other passerines on those islands are finches. It does not occur on the main Hawaiian Islands and prefers dense, low vegetation. It is usually secretive and hard to see well, but males sometimes sing from an exposed perch. The song and calls are harsh chirps and churring.
References
- ^ BirdLife International (2016). "Acrocephalus familiaris". IUCN Red List of Threatened Species. 2016: e.T22714797A94427463. doi:10.2305/IUCN.UK.2016-3.RLTS.T22714797A94427463.en. Retrieved 12 November 2021.
- ^ "NatureServe Explorer 2.0".
- Morin, Marie P., Sheila Conant and Patrick Conant. (1997). Laysan and Nihoa Millerbird (Acrocephalus familiaris), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: [1]
External links
- BirdLife Species Factsheet.
- "Acrocephalus familiaris". Integrated Taxonomic Information System. Retrieved 23 February 2009.
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This page was last edited on 18 June 2024, at 20:00