Encyclopedia of Life · EOL (see source)
Species
Critically EndangeredLe Canard de Laysan ou Sarcelle de Laysan (Anas laysanensis) est une espèce de palmipèdes appartenant à la famille des Anatidae. Il possède un plumage orangé marbré de brun. La tête est brun foncé. Son œil est noir entouré d'une tâche blanche plus ou moins marquée. Le mâle possède des motifs faciaux plus marqués que la femelle, sous la forme de petites traînées blanchâtres. Le bec est gris argenté à orange. Les pattes palmées sont orange pâle chez la femelle et orange vif chez le mâle.
via IUCN
Wikidata facts
Show 8 more facts
- taxon rank
- species
- IUCN conservation status
- Critically Endangered
- taxon name
- Anas laysanensis
- Commons category
- Anas laysanensis
- taxon common name
- lajsanska patka
- endemic to
- Hawaiian Islands
- CITES Appendix
- Appendix I of CITES
- short name
- A. laysanensis
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Encyclopedic overview
The Laysan duck (Anas laysanensis), also known as the Laysan teal, and sometimes known by its Hawaiian name, koloa pōhaka, is a dabbling duck endemic to the Hawaiian Islands. Fossil evidence reveals that Laysan ducks once lived across the entire archipelago, but today survive only on Laysan Island and two atolls. The duck has several physical and behavioral traits linked to the absence of ground-based predators in its habitat. By 1860, the ducks had disappeared from everywhere except Laysan Island. The introduction of European rabbits by guano miners at the end of the 19th century brought the bird to the brink of extinction in 1912, with twelve surviving individuals. Rabbits were eradicated from the island in 1923 and numbers of Laysan ducks began to rise, reaching 500 by the 1950s. In an effort to ensure the long-term future of this duck, 42 birds were translocated to Midway Atoll National Wildlife Refuge in 2002. These thrived in their new surroundings, and another group were later relocated to Kure Atoll.
Taxonomy
Excerpted from Wikipedia’s “Laysan Duck” article, available under the CC BY-SA 4.0 licence.