Senegal Triel
| Senegal Triel | ||||||||||
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Senegal triel ( Burhinus senegalensis ) |
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| Systematics | ||||||||||
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| Scientific name | ||||||||||
| Burhinus senegalensis | ||||||||||
| ( Swainson , 1837) |
The Senegal triel ( Burhinus senegalensis ) is a predominantly crepuscular and nocturnal species from the triele family. It occurs in two subspecies exclusively in Africa.
description
The Senegal triel reaches a body length of 32 to 38 centimeters. It is similar to the triel found in Eurasia , but overall a bit lighter than this and has a slightly longer beak. The white around the eye region is a little more pronounced in the Senegal triel, which makes the entire face appear lighter than in the triel.
The back and shoulders are uniformly gray. The wings have a wide, light gray band on the underside. There is a small white spot on the arm base. In all clothing, the Senegal triel has a black beak, which only has a yellow spot at the base of the upper beak. This also distinguishes it from the Triel, which has a predominantly yellow beak with a black tip.
distribution
The nominate form Burhinus senegalensis senegalensis occurs from Senegal and Gambia to Sudan. The subspecies Burhinus senegalensis inornatus occurs in Egypt from the Nile Delta to the south and from Ethiopia to Kenya and Uganda.
The Senegal triel is a resident bird in large parts of its distribution area. In other regions, the species moves to drier areas during the rainy season or during floods. In the rainy season, for example, Senegal Triele move to the northeast of the Democratic Republic of the Congo from November and stay there until April or May. In Nigeria, the species only migrates locally, depending on the water levels. The number of Senegal triele falls during the rainy season in northern Nigeria.
Habitat and way of life
The Senegal Triel prefers open and dry terrain, arid steppes and thorn bush savannahs as living space . On the other hand, it avoids the actual desert and shows a preference for breeding sites near which bodies of water are located. It is particularly common on sandy river and lake banks.
The species is not shy of humans and has also opened up human settlement areas. In Egypt, for example, it also breeds on flat roofs and is even found in the urban areas of Cairo. In the West African Sahel zone, it can often be seen inside villages.
The diet consists mainly of insects, crustaceans, mollusks and worms. The Senegal triel also eats frogs and small rodents. While foraging for food he can often be seen in smaller groups. Very little is known about their reproductive behavior. Both parent birds lead the young.
supporting documents
literature
- Peter Colston , Philip Burton: Limicolen - All European wader species, identifiers, flight images, biology, distribution. BlV Verlagsgesellschaft, Munich 1989, ISBN 3-405-13647-4
- Simon Delany, Derek Scott, Tim Dodman, David Stroud (Eds.): An Atlas of Wader Populations in Africa and Western Eurasia. Wetlands International , Wageningen 2009, ISBN 978-90-5882-047-1
Single receipts
- ↑ a b Peter Colston, Philip Burton: Limicolen - All European waders species, identifiers, flight images, biology, distribution. BlV Verlagsgesellschaft, Munich 1989, ISBN 3-405-13647-4 , p. 33.
- ↑ Simon Delany, Derek Scott, Tim Dodman, David Stroud (Eds.): An Atlas of Wader Populations in Africa and Western Eurasia. Wetlands International , Wageningen 2009, ISBN 978-90-5882-047-1 , p. 74.
- ↑ a b Delany et al., P. 76.
Web links
- Burhinus senegalensis inthe IUCN Red List of Threatened Species 2013.1. Listed by: BirdLife International, 2012. Retrieved October 2, 2013.