Tuesday 18 June
Laysan millerbird (Acrocephalus familiaris familiaris)
Laysan millerbird fact file
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Laysan millerbird description
A small and unremarkable warbler, the Laysan millerbird is so-named as it ate large numbers of moths, known as ‘millers’ on Laysan Island. It had a thin bill and was brown above, being darkest on the crown, and white below. It had a simple song of rapid, sharp notes (2).
- Length: 13 cm (2)
Laysan millerbird biology
A monogamous species, Laysan millerbirds remained in the same pairs from year-to-year. They were territorial and nested in dense shrubs, laying two eggs between May and June. The male and female took turns to incubate the eggs over a period of 17 days. The Laysan millerbird ate insects and larvae, particularly moths (2).Top
Laysan millerbird rangeTop
Laysan millerbird habitat
As a land bird, the Laysan millerbird preferred dense cover on the ground, particularly amongst shrubs (2).Top
Laysan millerbird statusTop
Laysan millerbird threats
The extinction of the Laysan millerbird between 1915 and 1923 was brought about by the introduction of rabbits to Laysan Island by guano diggers. The rabbits devastated the vegetation of the island, reducing the availability of insect prey (2).Top
Laysan millerbird conservation
This bird is now considered to be extinct.Top
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- A species or taxonomic group that is only found in one particular country or geographic area.
- Accumulated droppings found where large colonies of animals such as seals, bats or birds occur; it is rich in nutrients.
- Having only one mate during a breeding season, or throughout the breeding life of a pair.
- A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.
- IUCN Red List (February, 2005)
- BirdLife International (February, 2005)
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