Okinawa Rail vs Marquesan Swamphen

Hypotaenidia okinawae compared with Porphyrio paepae

Side-by-Side Comparison

Attribute Okinawa Rail Marquesan Swamphen
Scientific Name Hypotaenidia okinawae Porphyrio paepae
Order Gruiformes Gruiformes
Family Rallidae Rallidae
Conservation Status Endangered Extinct
Length
Wingspan 28.6 cm (11.3 in)
Weight 434.0 g (15.31 oz)
Diet -- --
Clutch Size 2-3 --
Population Trend

Habitat Comparison

Shared Habitats

Okinawa Rail only

Marquesan Swamphen only

None

Conservation Status

Endangered

Okinawa Rail

Extinct

Marquesan Swamphen

About These Birds

Okinawa Rail

Okinawa Rail (Hypotaenidia okinawae), 30 cm. Dark brown above; white-barred underparts; red bill and legs. Flightless or near-flightless; endemic to the northern forests of Okinawa, Japan. Omnivore: invertebrates and plant material. Endangered; fewer than 1,500 individuals; threatened by mongoose and traffic.

Marquesan Swamphen

Marquesan Swamphen (Porphyrio paepae) is an extinct flightless swamphen known only from subfossil bones from the Marquesas Islands, French Polynesia. Lost following Polynesian settlement and later European contact. Part of the broader pattern of Pacific island rail extinctions linked to human arrival and introduced rats.

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