Brazilian Merganser
Mergus octosetaceus
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="mergus-octosetaceus"></div>Embed via iframe for maximum compatibility.
<iframe src="https://birdfyi.com/iframe/bird/mergus-octosetaceus/" 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/mergus-octosetaceus/Add a dynamic SVG badge to your README or docs.
[](https://birdfyi.com/bird/mergus-octosetaceus/)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="mergus-octosetaceus"></birdfyi-bird>حول
One of the world's rarest waterfowl (~830 g), family Anatidae, with a serrated bill and dark green head with bushy crest. Inhabits fast-flowing clear rivers in the Atlantic Forest of Brazil, Argentina, and Paraguay. Feeds on fish and aquatic invertebrates. Critically Endangered; fewer than 250 mature individuals remain due to dam construction and river degradation.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| طول الجناح | 39,2 cm | 15.4 in |
| الوزن | 827,6666666666666 g | 29.20 oz |
التعرف
الريش
Male has dark glossy greenish-black head with long shaggy crest; finely vermiculated grey body, white wing patch. Female similar but with rufous-chestnut wash on head and shorter crest.
Habitat & Range
النطاق الجغرافي
Critically endangered; restricted to a few rivers in southern Brazil, Argentina, and Paraguay. Found on fast-flowing rivers in Atlantic Forest.
Diet & Feeding
Dives for small fish in fast-flowing South American rivers. Critically endangered; uses serrated bill to catch fish in clear streams.
حالة الحفاظ
السلوك والتكاثر
التعشيش
Nest type: CV. Incubation: 34 days.
عدد البيض في الوضع
5-8
الصوت
الغناء
Male produces a harsh, rasping call; female gives a guttural, grunting series. Critically endangered; quiet vocalizations suit its secretive lifestyle in fast-flowing Brazilian mountain rivers.
التصنيف
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| الرتبة | Anseriformes (Waterfowl) |
| الفصيلة | Anatidae (Ducks, Geese & Swans) |
| Genus | Mergus |
| الأنواع | Mergus octosetaceus |
Distribution
Brazilian Merganser has been recorded in 1 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
الأسئلة الشائعة
What does the Brazilian Merganser eat?
Where does the Brazilian Merganser live?
Is the Brazilian Merganser endangered?
How does the Brazilian Merganser nest?
What does the Brazilian Merganser sound like?
How big is the Brazilian Merganser?
What order and family does the Brazilian Merganser belong to?
Similar Birds
Other species in the Anatidae family