Great gray owl
| Great gray owl | ||||||||||
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Great gray owl ( Strix bartelsi ) |
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| Systematics | ||||||||||
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| Scientific name | ||||||||||
| Strix Bartelsi | ||||||||||
| ( Finsch , 1906) |
The Bartelskauz ( Strix bartelsi ) is a species from the family of real owls. It occurs exclusively in Southeast Asia. For a long time it was considered a subspecies of the Malay Owl . In more recent literature it is assumed that Malay Owl, Niaskauz , Mountain Owl and Bartelskauz form a superspecies . The name of the species honors the German ornithologist Max Eduard Gottlieb Bartels (1836–1871).
features
With a body size of around 39 to 43 centimeters, the great gray owl is a relatively large species within its genus. Feather ears are missing. The face veil is reddish brown to chestnut colored and surrounded by a noticeable dark border. The region around the eyes is black. The eyebrows are cream colored. The head plumage is otherwise predominantly dark to black-brown. The throat is whitish. There is a wide, ocher-colored band in the neck. The front breast is chestnut colored or reddish with fuzzy, fine dark horizontal stripes. The wings and tail are striped reddish and cream-colored. The underside of the body is cream-colored with darker, brown horizontal stripes. The legs are feathered, the toes are just not feathered at the front. The eyes are dark brown.
It can be confused with the Malay Owl , whose face veil is more reddish and lacks the neck band.
Distribution area
According to the current state of knowledge, the great gray owl only occurs in western Java. But it is possible that it also occurs sporadically on Sumatra and Borneo. It is a standing bird. Its habitat are primary mountain forests. It occurs at altitudes between 1,000 and 2,000 meters above sea level.
Way of life
The way of life of the great gray owl has so far been little researched. It is observed more often in pairs and seems to be mostly in the dense mountain forest, while it visits the forest edges less often. His presence falls mostly on the fact that it from other birds - most notably Graudrongos - hated is.
Its food spectrum consists mainly of large insects. Smaller mammals also play a role. So far nothing is known about reproductive biology. It is believed that the couples stay together for life.
supporting documents
Single receipts
- ↑ König et al., P. 359
literature
- Claus König , Friedhelm Weick: Owls of the World . Christopher Helm, London 2008, ISBN 978-0-7136-6548-2