Hawaiian duck Anas wyvilliana / Koloa maoli The koloa, is generally mottled brown and has a green to blue speculum (the distinctive feathers on the secondary wing feathers) with white borders. The Hawaiian duck (Anas wyvilliana) breeds in montane streams and feeds and loafs in lowland wetlands. This bird is interesting because of the habitat and niche it possesses, why it has become endangered, and the conservation efforts. Its blue-green speculum is bordered by white. Adult males tend to have a darker head and neck feathers (sometimes green). The Hawaiian Duck has been included in works on waterbird distribution, habitat (Shallenberger, R. J. Kealia Pond NWR was established in 1992 to preserve and restore one of the largest wetlands in Hawaii for the benefit of endangered Hawaiian waterbirds (Hawaiian stilt, Hawaiian coot and Hawaiian duck), migratory waterfowl and shorebirds from around the world.

The endemic Hawaiian Duck (Anas wyvilliana) or Koloa maoli, is a federally endangered species, with only about 2,000 “true” Koloa remaining.

Also known as koloa maoli (“native duck”), this mottled brown duck has lived in Hawaii for thousands of years but is killing off its own species because it has a fondness for cross-breeding with the mallard duck. Objectives

Conservation efforts are saving the Hawaiian duck by keeping these two love bird species apart. Similar to the rest of Hawaiian native waterbirds, koloa maoli (Hawaiian duck) also are threatened by: Habitat loss. It historically occurred on all the main Hawaiian Islands except Lana`i and Kaho`olawe which have little surface water. The males are larger than the females but similar in appearance. Females have a dull orange bill. Both sexes have orange legs and feet. The last observation of a Hawaiian Duck on Molokai was in May and June of 1893, so the presence of two over the past several months has caused quite a stir in the scientific community. Hawaiian Duck Habitats. Due to legends of Hawaii, the Hawaiian duck has been a guide to Imaikalini, a fierce blind warrior king. As of 2012, the Hawaiian Duck has been considered an endangered species. Evolutionary relationships and conservation of the Hawaiian anatids. Hawaiian geese graze and browse on the leaves, seeds, berries, and flowers of grasses, herbs and shrubs. Hawaiian Duck Anas wyvilliana / Koloa maoli The koloa, also known as the Hawaiin duck, is generally mottled brown and has a green to blue speculum (the distinctive feathers on the secondary wing feathers) with white borders. Males of two types, both with greenish-olive bill and dark mark on culmen: ‘brig Rises to a height of 3300 meters. (1977a). Hawaiian Duck: This small dabbling duck is mostly mottled brown, buff and black; uniformly gray-brown on the throat, nape and head.

The Hawaiian duck (Anas wyvilliana) breeds in montane streams and feeds and loafs in lowland wetlands.

They will use tools that represent different beaks to learn which beak is better adapted to collect different food types in a certain amount of time. This is a species we can save if we try. Hawaiian Duck 44–51 cm; 568–628 g#R. This species is a dogfight to prevail and live on as a species, but are terribly losing. Small, dark brown dabbling duck with orange legs and narrow whitish eyering.

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