http://www.birdlife.org on 10/12/2020. Fact sheet 2005-3128. Robert J. Shallenberger, U.S. For the play by Henrik Ibsen, see The Wild Duck. A recovery plan for the Laysan Duck has been developed by the U.S. 41 cm. DOI|10.2173/bna.242 (requires subscription)* (2004): Habitat use and home range of the Laysan Teal on Laysan Island, Hawaii. In 2004 and 2005, … 2008) and predicted to grow to a total of 380 birds (Reynolds et al. "Waterbirds" 27(2): 183-192. Pesticide containers and oil spills have contaminated Laysan in the past. 2013). The decline of the Laysan Duck began 1000-1600 years ago, with the colonization of the Hawaiian Islands by Polynesians and associated non-native mammalian predators. 2011). Males have a blue-green bill with black spots along the upper mandible (bill). Unlike its smaller Laysan Island relative, the Koloa is a strong and … Human disturbance may impact nesting and brooding, and landing permits to the Laysan Island refuge are granted only for official or scientific purposes. "In:" aut|Poole, A. * (2006b): Midway Atoll national Wildlife Refuge welcomes second generation of nation’s rarest ducks. Breeding in Pacific ocean: Laysan Island; can be seen in 2 countries. Three passerines - the Laysan finch, found on Laysan Island and Pearl and Hermes Atoll, and the Nihoa finch and the Nihoa millerbird, which are endemic to Nihoa. The Laysan Duck (Anas laysanensis), also known as the Laysan Teal because of its small size, is an endangered dabbling duck endemic to the Hawaiian Islands. Called a mud hen in the native language, this bird loves hanging out in freshwater marshes and lagoons. [http://www.fws.gov/pacificislands/wnews/LDTP2005.pdf PDF fulltext] * (2005): Translocation of Endangered Laysan Ducks to Midway Atoll National Wildlife Refuge (2004-5). Downloaded from As of early May 2015, 19 ducklings had hatched on the island (Anon. The newly established population on Midway lays larger clutches. 2010), and an outbreak of this disease has occurred every year since (M. Reynolds in litt. "Atoll Research Bulletin" 543: 181-199. In North America, it is also known as Wild Duck. Acrocephalus Laysan Millerbird familiaris 7. 2011). 1999) and native bunch grass has responded positively (Reynolds et al. 2007). Very small, dark duck. "Auk" 116(3): 792–805. Laysan Duck (Anas laysanensis) bird call sounds on dibird.com. News Release, May 16. The creation of a second population, since disaster is unlikely to strike both atolls simultaneously, reduces the risk of extinction by random catastrophes such as drought, hurricanes, tsunamis, disease outbreaks (like avian influenza), and accidental introductions of non-native plants and animals. Anas laysanesis was believed to have existed only on Laysan, until evidence from bones in 1995 indicated it … FAMILY AND SCIENTIFIC NAMES … To achieve this goal, biologists plan to establish at least five populations on a combination of predator-free Northwestern Hawaiian Islands and predator-controlled sites on Main Hawaiian Islands. The Laysan Duck takes its name from Laysan Island, a small atoll with an area of 4.11 km2 northwest of the main Hawaiian Islands. News Release, Oct 28. It is a widespread dabbling duck found in wetland areas, including parks, small ponds and rivers. Laysan Island, also protected as … The species is endemic to the Hawaiian Islands (U.S.A.), where it became confined to Laysan Island.The birds do not disperse from Laysan today, but sub-fossil remains indicate that it was widespread on the Hawaiian Islands in the past (Reynolds and Kozar 2000), most recently being extirpated from Lisianski Island about 150 years ago.The species was near extinction at the beginning of the 20th century, but … Justification of Red List CategoryThis species is listed as Critically Endangered because its population exhibits extreme fluctuations within its extremely small range. In 2004 and 2005, ducks were successfully translocated from Laysan Island to Midway Atoll to increase the species’ chance of survival. [http://biology.usgs.gov/pierc/Current%20News/Laysan%20Fact%20Sheet%20Final%20LoRes.pdf PDF fulltext] * (2006a): Second generation of the nation’s rarest ducks hatch after translocation. Fish and Wildlife Service to restore a second population of ducks in the wild. http://www.birdlife.org on 10/12/2020. As of January 2007, 100 ducks call Midway’s Sand and Eastern Island home. Rising sea level, increasing … Thirty-three of the 64 endemic species are extinct and two formerly established introduced … The species is consequently precautionarily maintained as Critically Endangered, since although it now occurs at two locations and was recently translocated to a third island, population fluctuations have continued within the past five years. [http://www.usgs.gov/newsroom/article_pf.asp?ID=1577 HTML fulltext], *ARKive - [http://www.arkive.org/species/GES/birds/Anas_laysanensis/ Images and movies of the Laysan Duck "(Anas laysanensis)"] * [http://www.birdlife.org/datazone/search/species_search.html?action=SpcHTMDetails.asp&sid=437&m=0 BirdLife Species Factsheet], Laysan duck — noun (Anas laysanensis), an endangered dabbling duck endemic to the Hawaiian Islands Syn: Laysan teal …   Wiktionary, Laysan — (Hawaiian: Kauō), located convert|808|nmi|km mi|0|lk=on northwest of Honolulu at N25° 42 14 W171° 44 04 , is one of the Northwestern Hawaiian Islands. 2008) and in 2014, Kure Atoll received 28 individuals from Midway Atoll (Ward and Fredrickson 2014). Today, breeding and survival of the birds is closely tracked. Some alien invasive plants on Laysan have threatened nesting and wetland habitat (Morin et al. Prior to the tsunami, two winter storms struck in January and February, bringing high wind and extensive flooding. Trend justificationThe population on Laysan Island has increased gradually since a low during the early 20th century, owing to the eradication of invasive alien taxa; however, it has fluctuated between 100 and ~700 birds in the last two decades. [USFWS 2005], The second “insurance” population of Laysan Ducks on Midway has grown quickly, more than doubling in size within the first two years (USGS 2006c). [USGS 2005] In 2004, the population grew to an estimated 576 ducks.In October 2004 and 2005, 42 Laysan Ducks were translocated to Midway Atoll National Wildlife Refuge as a collaborative effort between the U.S. Geological Survey and U.S. Fossil evidence reveals that Laysan Ducks once lived across the entire Hawaiian Island chain, but today survive only on three small, isolated islands. The legs and feet are orange, usually brighter in the male. Egg-laying typically occurs from April to August. Laysan Ducks The diminutive Laysan Duck may be a ”small brown job” but its wow factor comes from an engaging personality and an intriguing history. Most adult birds use dense cover and hide in the terrestrial vegetation during the day. On Laysan, long-term pair bonds are common, and 3-4 eggs are laid per clutch. 2000) are perhaps one of the greatest potential threats - the catastrophic outbreak of avian botulism killed 40-50% of teal on Midway in 2008 (M. Reynolds in litt. Environmental catastrophes such as drought, severe storms, and tsunamis may decimate populations. The list contains 337 species. Iridescent speculum appears teal green, or blue. Human disturbance may impact nesting and brooding, and landing permits to the Laysan Island refuge are granted only for official or scientific purposes. Fish and Wildlife Service. Recent evidence suggests they evolved from an east Asian, southern hemisphere ancestor of mallards, not from stray migratory Mallards ("Anas platyrhynchos") as had been reported in the past. This suggests that the population numbers c.500-680 mature individuals in total. Fish and Wildlife Service to restore a second population of ducks in the wild. 2013). As of January 2007, 100 ducks call Midway’s Sand and Eastern Island home. High incidence of duckling trauma suggests these freshwater seeps may become overcrowded. Energetic foraging behavior includes a fly-snapping sprint through "Neoscatella sexnotata" brine fly swarms. However, population bottlenecks occurred, such as the severe 1993 El Niño drought and food shortage, which reduced the number of ducks to about 100. Devastation to vegetation could increase sedimentation of the lakes and seeps that serve as important foraging habitat. [Warner 1963] [Moulton & Weller 1984] [Moulton & Marshall 1996] Congress passed the Endangered Species Preservation Act in 1966, and in 1967 the Laysan Duck was declared an endangered species with federal protection. [http://www.fws.gov/midway/LADUnr052306.pdf PDF fulltext] * (2006c): Endangered duck population reaches triple digits! 2011, 2012, J. R. Walters in litt. Fish and Wildlife Service 2011, M. Reynolds in litt. "In:" aut|Poole, A. Laysan Island is part of the Hawaiian Island National Wildlife Refuge and only scientists have permission to visit the island in an effort to save the Laysan Duck from extinction. Like the Laysan Duck, it does not migrate, but nests on the main Hawaiian Islands and several of the smaller offshore islets of the main group. Academy of Natural Sciences, Philadelphia, PA & American Ornithologists' Union, Washington, D.C. Online version, retrieved 2007-FEB-08. The scope of this list encompasses the entire Hawaiian Islands chain, from Kure Atoll in the Northwestern Hawaiian Islands to the north, to the "Big Island" of Hawaii to the south. (eds. & Gill, F. To achieve this goal, biologists plan to establish at least five populations on a combination of predator-free Northwestern Hawaiian Islands and predator-controlled sites on Main Hawaiian Islands. News Release, May 16. Even a slight rise in sea level would destroy a large portion of the duck’s current habitat. Aug 11, 2013 - Explore Noreen Nishikawa's board "Hawaiian Endangered Animals " on Pinterest. Anas laysanensis Laysan ducks are brown with a bright green-blue to purple speculum (the feathers on the secondary wing feathers), and have a white area of feathers around their eyes. 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