Lowland owl hawk
| Lowland owl hawk | ||||||||
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| Aegotheles file | ||||||||
| Rand , 1941 |
The lowland owl ( Aegotheles tatei ) is a scarcely researched species of bird from the genus of the cave dovetail ( Aegotheles ). It occurs in New Guinea . The taxon was described by Austin Loomer Rand in 1941 as a subspecies of the owl swallow ( Aegotheles insignis ) and classified as a separate species in 2000 by Thane K. Pratt. The type epithet refers to the American zoologist George Henry Hamilton Tate .
features
The lowland screech hawk reaches a size of about 25 cm. It is similar to the owl swallow found in the mountains, but is noticeably smaller. The plumage is overall reddish brown. The white markings, especially on the underside and above the eyes, are significantly reduced. The lower wings are reddish-brown instead of black-brown as in the screech owl. The under tail-coverts are reddish brown with white spots. The tail bands are whitish. The ear covers are rough and short.
Occurrence, habitat and way of life
The well-known distribution area is in eastern central New Guinea on the upper reaches of the Fly River and in Amazon Bay . The habitat includes lowland forests. Nothing is known about his way of life.
status
The IUCN classifies the species in the category “ data deficient ”. So far only 4 museum specimens and two other field observations have become known. The two type specimens were collected in 1936 by Austin Loomer Rand below Palmer Junction near the Indonesian border. The third specimen was shot in 1969 in the Nunumai region in the extreme southeast. There is also an unlabeled, fourth museum specimen that was collected in the 1920s. Other confirmed sightings are from 1962 from the Brown River west of Nunumai, from 2003 along Drimgas Road approximately 17 km north of Kiunga in the Western Province , from Ekama Lodge in 2009 and 2012, where photos and records were first taken of the vocalizations and in 2016 from the Elevala River near Kiunga in the Western Province, where the bird watcher Phil Gregory made the first video recordings.
literature
- David T. Holyoak: Nightjars and Their Allies. (= Bird Families of the World. Volume 7). Oxford University Press, 2001, ISBN 0-19-854987-3 .
- J. Del Hoyo, A. Elliot, J. Sargatal (Eds.): Handbook of the Birds of the World. Volume 5: Barn-Owls to Hummingbirds. Lynx Edicions, 1999, ISBN 84-87334-25-3 .
- AL Rand: Results of the Archbold Expeditions. No. 32. New and interesting birds from New Guinea. In: American Museum Novitates. No. 1102, 1941, p. 10. (First scientific description)
Web links
- BirdLife International: Species Factsheet - Aegotheles tatei
- Photos and videos in the Internet Bird Collection
- Aegotheles tatei in the endangered Red List species the IUCN 2017.1. Posted by: BirdLife International, 2016. Retrieved September 2, 2017.
Individual evidence
- ↑ TK Pratt: Evidence for a Previously Unrecognized Species of Owlet-Nightjar. In: The Auk. 117 (1), 2000, pp. 1-11.