Iwo Jima Jacana Claw
| Iwo Jima Jacana Claw | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Porzana cinerea brevipes | ||||||||||||
| ( Ingram , 1911) |
The Iwo-Jima jacana ( Porzana cinerea brevipes ), also known as the Iwo-Jima white- browed rail , is an extinct subspecies of the white- browed rail ( Porzana cinerea ), which is also known as the white- browed marsh grouse or the jacobar . It was endemic to Iwo Jima and Minami-Iwojima in the Ogasawara Islands . Their validity is considered controversial.
features
The Iwo Jima jacana was 8 inches tall. The top was brown with black spots. The underside was gray. The flanks were faded leather brown. White stripes ran above and below an eye stripe. The feathers of the lower back and rump showed a black center and olive-brown tips. The head was gray. The neck was washed out brownish. The beak was olive yellow with a red base. The iris was red. Legs and feet were olive yellow. The sexes looked the same.
habitat
The Iwo Jima jacana tribe inhabited grasslands and thickets, as well as swamps and freshwater ponds.
Way of life
Almost nothing is known about their way of life. Comparisons with the white-browed rail, which is distributed in six other subspecies from Malacca via central Polynesia to northern Australia, lead to the assumption that the Iwo-Jima jacana is good at walking on the floating leaves of aquatic plants and climbing with its long toes was adapted in the branches of mangroves.
die out
The Iwo Jima jacana has a very restricted range and probably disappeared as a result of being stalked by cats and rats. Habitat changes could also have contributed to the extinction. According to the Wild Bird Society of Japan, the Iwo Jima jacana was last collected in 1911. Unconfirmed sightings are said to have occurred in 1924 and 1925.
literature
- James C. Greenway: Extinct and Vanishing Birds of the World. Dover Publications Inc., New York 1967, ISBN 0-486-21869-4 .
- David Day: The Doomsday Book of Animals. Ebury Press, London 1981, ISBN 0-670-27987-0 .
- Dieter Luther: The extinct birds of the world. Westarp Sciences, 1995, ISBN 3-89432-213-6 .
- SD Ripley: Rails of the World - A Monograph of the Family Rallidae. Boston 1977, ISBN 0-87474-804-6 .