Hawaiian Duck
Anas wyvilliana
Embed This Widget
Add the script tag and a data attribute to embed this widget.
<script src="https://cdn.jsdelivr.net/npm/birdfyi-embed@1/dist/embed.min.js" defer></script>
<div data-birdfyi="bird" data-slug="anas-wyvilliana"></div>Embed via iframe for maximum compatibility.
<iframe src="https://birdfyi.com/iframe/bird/anas-wyvilliana/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://birdfyi.com/bird/anas-wyvilliana/Add a dynamic SVG badge to your README or docs.
[](https://birdfyi.com/bird/anas-wyvilliana/)Use the native HTML custom element.
<script src="https://cdn.jsdelivr.net/npm/birdfyi-embed@1/dist/embed.min.js" defer></script>
<birdfyi-bird slug="anas-wyvilliana"></birdfyi-bird>On this page
Sobre
O pato havaiano, ou koloa maoli, é um pato dabbling ameaçado endémico do Havai. Assemelha-se a um pato-real de tamanho reduzido e é encontrado em zonas húmidas, rios e áreas costeiras nas principais ilhas havaianas. Enfrenta ameaças de hibridização com patos-reais introduzidos, perda de habitat e predação por espécies invasoras. Os esforços de conservação incluem programas de criação em cativeiro e gestão de habitat para manter as populações puras geneticamente.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| Envergadura | 44,0 cm | 17.3 in |
| Peso | 573,25 g | 20.22 oz |
Identificação
Plumagem
Mottled brown plumage; males may show slight green gloss on head but reduced compared to Mallard. Iridescent blue-purple speculum with white borders. Orange bill. Females similar to males; pale buff supercilium.
Habitat & Range
Freshwater marshes, rivers, reservoirs, and taro fields on Kauai and other Hawaiian islands. Nests in dense vegetation near water. Threatened by hybridization with domestic or feral Mallards.
Distribuição geográfica
Ranges across sub-Saharan Africa in open grasslands and wetland edges. Locally nomadic following seasonal rainfall patterns.
Diet & Feeding
Fish-diving duck of South American rivers; uses serrated bill to catch fish and aquatic invertebrates; diet mainly fish year-round.
Estado de conservação
Comportamento e reprodução
Nidificação
Nest type: HC.
Tamanho da postura
9-13
Som
Canto
Female produces a raspy, descending quacking series; male gives a soft, nasal sound. Calls similar to Mallard but higher-pitched; alarm is a rapid-fire quacking rattle.
Taxonomia
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Ordem | Anseriformes (Waterfowl) |
| Família | Anatidae (Ducks, Geese & Swans) |
| Genus | Anas |
| Espécies | Anas wyvilliana |
Distribution
Hawaiian Duck has been recorded in 5 countries.
{# Distribution Map — simplified SVG world map with highlighted countries. Expects `country_codes` variable: list of ISO alpha-2 codes (e.g. ["US", "CA", "MX"]). Uses Alpine.js to toggle classes on country paths. #}countries highlighted
External Databases
Perguntas frequentes
What does the Hawaiian Duck eat?
Where does the Hawaiian Duck live?
Is the Hawaiian Duck endangered?
How does the Hawaiian Duck nest?
What does the Hawaiian Duck sound like?
How big is the Hawaiian Duck?
What order and family does the Hawaiian Duck belong to?
Similar Birds
Other species in the Anatidae family