Calayan Rail vs White Swamphen
Aptenorallus calayanensis مقارنةً بـ Porphyrio albus
Side-by-Side Comparison
| السمة | Calayan Rail | White Swamphen |
|---|---|---|
| الاسم العلمي | Aptenorallus calayanensis | Porphyrio albus |
| الرتبة | Gruiformes | Gruiformes |
| الفصيلة | Rallidae | Rallidae |
| حالة الحفاظ | Vulnerable | Extinct |
| الطول | — | — |
| طول الجناح | — | — |
| الوزن | 244,5 g (8.62 oz) | — |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 3 | -- |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Vulnerable
Calayan Rail
Extinct
White Swamphen
About These Birds
Calayan Rail
Calayan Rail (Aptenorallus calayanensis), 20 cm. Brown above; grey underparts; yellow-green bill; short wings suggesting flightlessness. Discovered in 2004; endemic to Calayan Island, Philippines. Inhabits forest undergrowth. Omnivore. Endangered; tiny single-island range with minimal forest remaining.
White Swamphen
White Swamphen (Porphyrio albus) is an extinct all-white swamphen formerly endemic to Lord Howe Island, Australia. Known from specimens collected around 1790 and early drawings; had reduced wings indicating flightlessness or near-flightlessness. Extirpated by hunting after European discovery. Related to Australasian Swamphen.