Tawny owl (Strix aluco)
Facts
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Aves |
| Order | Strigiformes |
| Family | Strigidae |
| Genus | Strix (1) |
| Size |
Wingspan: 81-96 cm (2) Length: 37-43 cm (2) |
| Learn about the scientific name of this species and how it fits into the tree of life, at Nature Navigator |  |
Status
Common and widespread (3). Protected at all times under the Wildlife and Countryside Act, 1981 (6). Included in the Birds of Conservation Concern Green List (low conservation concern) (7).
Description
The tawny owl is the most common and widespread British owl (3). It is most often heard than seen; it produces a variety of vocalisations, including the familiar 'ke-wick' contact calls (4). It has a compact body and a large rounded head, and varies in colour from greyish to reddish brown with black and white streaks (2). The sexes are similar in appearance (2).
Range
Widespread and numerous throughout Britain, but becomes scarce in north Scotland (5). It occurs across the Palaearctic from Spain to China, reaching as far south as North Africa (3).
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Habitat
Biology
Tawny owls feed mainly on small mammals such as voles, as well as insects. They occupy a favourite perch, dropping onto prey that passes by; inedible remains such as fur and bones in the form of 'owl pellets' gather below these perches (3).
Pairs begin to form territories in the autumn; this involves much hooting and calling, and males occasionally clap their wings together in a form of display (3). Nesting usually takes place in holes in hollow trees, although abandoned crow nests may be used (3). In March or early April, between 2 and 4 white eggs are laid. These are incubated by the female for up to 30 days. The male takes charge of feeding the young, who fledge after 32-37 days (3).
Threats
The British population of the tawny owl is not currently threatened.
Conservation
Specific conservation action has not been targeted at this species.
Further Information
For more on British birds see the RSPB homepage:
http://www.rspb.org.uk
For more on this species see the RSPB's tawny owl information:
http://www.rspb.org.uk/birds/tawnyowl/?page=t
Authentication
Information authenticated by the RSPB:
http://www.rspb.org.uk/
Palaearctic region: the region that includes Europe, the part of Asia to the north of the Himalayan-Tibetan barrier, North Africa and most of Arabia.
References
- National Biodiversity Network Species Dictionary (November 2002):
http://www.nhm.ac.uk/nbn - Mullarney, K., Svensson, L., Zetterstrom, D., & Grant, P.J. (1999) Collins Bird Guide. HarperCollins Publishers Ltd, London.
- Gooders, J. (1982) Collins British Birds. William Collins Sons and Co Ltd, London.
- Greenoak, F. (1979) All the birds of the air. Book Club Associates, London.
- Lack, P. (1986) The Atlas of Wintering Birds in Britain and Ireland. T. & A. D. Poyser Ltd, Calton.
- RSPB (2003) Pers. comm.
- RSPB (2003) The population status of birds in the UK:
http://www.rspb.org.uk/Images/5_20625.pdf
