Geelvink foot fowl
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Geelvink foot fowl ( Megapodius geelvinkianus ) |
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| Megapodius geelvinkianus | ||||||||||
| Meyer , 1874 |
The Geelvink-Großfußhuhn ( Megapodius geelvinkianus ) is a species of bird in the family of megapodes (Megapodiidae). It occurs on the islands of Biak , Supiori , Numfor , Manim , Mios Korwar (Bepondi) and Mios Num in the Cenderawasih Bay (formerly Geelvink Bay) off the northwest coast of western New Guinea .
Systematics
The Geelvink large footed hen was originally considered a subspecies of the Moluccan large footed hen ( Megapodius freycinet ). In 2014 it was split off as a separate species due to morphological differences.
features
The Geelvink large footed hen reaches a body length of 36 cm. The hood is slightly upright. The plumage is predominantly dark gray-brown. The top has an olive tint. The face is reddish or bluish. The legs are red or dark gray. The Geelvink large footed chicken differs from the similar Moluccan large footed hen by its slightly lighter rear part and by a darker brownish-olive tint on the top. Throat and neck are less feathered than in the Moluccan large-footed chicken.
Vocalizations
The utterances have not yet been adequately studied. Duets are known in which one bird gives a keyeew-kyu-kyu and the other bird responds at the same time with a soft urrr cow-cow-cow . Various crowing and chuckling calls have also been recorded.
habitat
The Geelvink big footed grouse inhabits primary and secondary forests, dry scrubland, and cleared forests. It also occurs in the scrub near rivers. It can be seen regularly in disturbed habitats.
Way of life
Nothing is known about feeding behavior. It presumably feeds on invertebrates that it tracks down on the forest floor. Nothing is known about reproductive behavior either.
status
The IUCN lists the Geelvink-Großfußhuhn in the category "endangered" ( vulnerable ). The stock is not known. Based on the evaluation of all known records, however, it is estimated at 2,500 to 10,000 adult birds or a total population of 3,500 to 15,000 specimens. The main threats are egg collectors, hunting, hunting by mammals and the destruction of forests.
literature
- Ernst Mayr & Rodolphe Meyer de Schauensee : Zoological results of the Denison-Crockett Expedition to the south Pacific for the Academy of Natural Sciences of Philadelphia, 1937–1938. Part 1: The birds of the Island of Biak. Proceedings of the Academy of Natural Sciences of Philadelphia 91, 1939: p. 1–37 (here p. 16).
- Darryl N. Jones, René WRJ Dekker and Cees S. Roselaar: Bird Families of the World Volume: 3: The Megapodes. Oxford University Press, 1995. ISBN 0198546513
- TK Pratt & Bruce M. Beehler: Birds of New Guinea. Second edition. Princeton University Press, Princeton, New Jersey, 2015. p. 266. ISBN 978-0-691-09562-2
- del Hoyo, J., Collar, N., Christie, DA & Kirwan, GM (2016). Biak scrubfowl (Megapodius geelvinkianus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, DA & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (accessed from http://www.hbw.com/node/467085 on December 24, 2016).
Web links
- Megapodius geelvinkianus inthe IUCN Red List of Threatened Species 2016.3. Posted by: BirdLife International, 2016. Retrieved December 24, 2016.
Individual evidence
- ↑ del Hoyo, J .; Collar, NJ; Christie, DA; Elliott, A .; Fishpool, LDC 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.