Waalietaube
| Waalietaube | ||||||||||
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Waali pigeon in Gambia |
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| Systematics | ||||||||||
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| Scientific name | ||||||||||
| Treron waalia | ||||||||||
| ( Meyer , 1793) |
The Bruce's green pigeon ( Treron waalia (also called a parrot dove, pigeon parrot, Waalie, Waalie Dove, Waaliataube and Waalia Pigeon)) is a bird art from the genus of green pigeon ( Treron ).
description
The body length of the Waali pigeon is 31 to 32 centimeters. It is as big as the red-shouldered green pigeon ( Treron phoenicoptera ), which only occurs in Asia. The plumage is pale olive green on top and light yellow on the underside of the bird. The head, neck and chest are light gray-green. The shoulders are wine red, the feet yellow. The pupil of the eye is surrounded by a bright blue ring, the iris is red.
Female whale pigeons are the same color as males, albeit a little paler. They are a little bit smaller.
Subspecies
habitat
The distribution area of whale pigeons extends from the Arabian Peninsula (for example the southern west coast of Saudi Arabia as well as Yemen and western Oman ) via East Africa (for example Kenya , Uganda , Ethiopia and southern Somalia with the island of Socotra ) to West Africa (for Example Togo , Ghana and Senegal ). The population in Kuwait is extinct, but the total population is not considered endangered, although the total number is decreasing slightly according to a 1997 publication by Spanish ornithologist Josep del Hoyo. Waali pigeons can be found on large, leafy trees near water points from sea level to under 2000 meters.
nutrition
Waali pigeons feed on berries, mainly figs . While other fruit pigeons do not necessarily prefer a single type of fruit in the wild, whale pigeons choose almost exclusively the fruits of the fig tree Ficus platyphylla, which is up to around 18 meters high .
Reproduction
Nests are built high on trees, far from the trunk on high branches. A clutch consists of a maximum of two eggs that are not always fertilized and are incubated between January and May. The average clutch size consists of 1.4 eggs.
Waali pigeons and humans
For the first time in a zoo, whale pigeons could be seen in London Zoo in 1898 . The first breeding success was in 1975 in the bird park in Walsrode . Breeding success and the intensity of the feathers seem to depend on the composition of the diet. As of March 28, 2011, specimens can be found in various zoos and bird parks: In Europe, for example, in the Walsrode bird park, in the Attica Zoo in Spata, Greece (20 kilometers east of Athens ), in the Blackbrook Zoo in Winkhill, Staffordshire , in the Seaview Wildlife Encounter the Isle of Wight , the Five Sisters Zoo in Polbeth, West Lothian , Scotland and the Moscow Zoo . Outside Europe, Waali pigeons are kept, for example, in the Breeding Center for Endangered Arabian Wildlife in Sharjah and in the Montecasino Bird Gardens in Johannesburg as well as in various zoos in the USA such as the Reid Park Zoo in Tucson , the Cincinnati Zoo and Botanical Garden in Cincinnati , the Houston Zoo in Houston and the San Antonio Zoological Gardens and Aquariums in San Antonio .
Waali pigeons can be found on postage stamps from the Yemeni Arab Republic (1965 and 1966), Gambia (1966), Ivory Coast (1966), Somalia (1968), Fujairah (1969), the People's Democratic Republic of Yemen (1988), Niger (2013), Togo (2013) and Oman (2014).
literature
- Gerhard Rösler: The wild pigeons of the earth. 2nd, revised and expanded edition. M. & H. Schaper, Alfeld 1996, ISBN 3-7944-0184-0 , p. 256.
Web links
- Treron waalia inthe IUCN Red List of Threatened Species 2012.2. Listed by: BirdLife International , 2012. Retrieved January 6, 2013.
- Videos, photos and audio recordings to Treron waalia in the Internet Bird Collection (English)
- xeno-canto: sound recordings - Waaliataube ( Treron waalia )
- Treron waalia at the National Center for Biotechnology Information (NCBI)
Individual evidence
- ^ Alfred Brehm : Brehms animal life . Fifth Volume, Second Section: Birds, Second Volume: Birds of Prey, Sperlingsvögel and Girrvögel, Verlag des Bibliographisches Institut, Leipzig 1882. Pages 625 to 627. Online at zeno.org
- ^ W. Daniel Kissling, Carsten Rahbek, Katrin Böhning-Gaesse: Food plant diversity as broad-scale determinant of avian frugivore richness . Proc. Biol. Sci. March 22, 2007, pages 799 to 808. PMC 2093978 (free full text) (English)
- ^ Walter Jetz , Çağan Hakkı Şekercioğlu , Katrin Böhning-Gaese : The Worldwide Variation in Avian Clutch Size across Species and Space. Appendix S4 p. 25 ( PDF , 575 kB; English), PLOS Biology 6 2008, doi : 10.1371 / journal.pbio.0060303
- ↑ Entry in the International Species Information System (English)
- ↑ Postage stamps with the motif Waalietaube on bird-stamps.org (English)