White-tufted Grebe vs Alaotra Grebe
Rollandia rolland مقارنةً بـ Tachybaptus rufolavatus
Side-by-Side Comparison
| السمة | White-tufted Grebe | Alaotra Grebe |
|---|---|---|
| الاسم العلمي | Rollandia rolland | Tachybaptus rufolavatus |
| الرتبة | Podicipediformes | Podicipediformes |
| الفصيلة | Podicipedidae | Podicipedidae |
| حالة الحفاظ | Least Concern | Extinct |
| الطول | — | — |
| طول الجناح | 26,9 cm (10.6 in) | — |
| الوزن | 336,0 g (11.85 oz) | — |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1-6 | -- |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
White-tufted Grebe
Extinct
Alaotra Grebe
About These Birds
White-tufted Grebe
White-tufted Grebe (Rollandia rolland) is a small 22–27 cm grebe of southern South America, from Peru and Bolivia south to Tierra del Fuego. Dark brown with distinctive white facial tufts extending from cheeks; chestnut neck sides. Inhabits freshwater lakes, bogs, and slow rivers. Partially migratory; nomadic in austral winter.
Alaotra Grebe
Alaotra Grebe (Tachybaptus rufolavatus) is an extinct small grebe formerly endemic to Lake Alaotra, Madagascar. Pale buff-brown, weak-winged, likely flightless or near-flightless. Last confirmed record 1985; declared extinct in 2010.