Taxon name
Bubo ascalaphus
Savigny, 1809
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Bubo ascalaphus
Savigny, 1809
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Birds
Species authority
Savigny, 1809
Location and scope
Specific locality or subnational name or regional name
United Arab Emirates (the)
Scope (of the Assessment)
National
Countries included within the scope of the assessment
United Arab Emirates (the)
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Qualifying criteria (if given)
D
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This species has a very small resident population in the UAE, which qualifies it for listing as Endangered. Given the long-term stability of the population, any immigration of mature individuals is not deemed significant. Therefore, the species's status has not undergone a regional adjustment and is retained as Endangered.
Assessment details
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Criteria system used
IUCN
Reference for methods given
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1, Second edition. IUCN, Gland, Switzerland and Cambridge, UK. iv + 32pp pp. And IUCN. 2012. Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
Taxon distribution as listed in assessment
This species is a widespread resident particularly in the northern part of the UAE, with several records also from the Empty Quarter (Jennings 2010, Pedersen et al. 2017).
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
Habitat
Habitat details as listed in assessment
This species inhabits lithified sandy areas and arid, rocky areas like mountains and steppe in the lowlands below 1,000 m. It is found on cliffs, crags, rocky outcrops and small isolated hills on the plains, as well as in sandy deserts interspersed with trees and bushes, often near the coast (Jennings 2010, Aspinall and Porter 2011). It feeds mainly on rodents (Lepus, Rattus, Meriones, Jaculus and Gerbillus species), but also on birds, bats, lizards and large invertebrates (Jennings 2010). When available, it is drawn to troughs and wells for drinking water (Jennings 2010). It generally avoids proximity to humans (Jennings 2010). Being solitary between August and December, pairs form in December and begin breeding in late January. The species nests on the ground, under Leptadenia and Ghaf vegetation,;in rock cavities, protected by an overhang, in an unlined sandy depression, which may be used in consecutive years (Jennings 2010). Clutches contain two or three eggs. Juveniles in the nest have been recorded until June (Jennings 2010). Humans approaching the nest are chased off by angry distraction displays including hooting and screaming, bill snapping, flapping along the ground and tumbling down slopes (Jennings 2010).
Threats and conservation measures listed
Threats listed in assessment
This species may face persecution to discourage nesting near human habitation (Aspinall 1996), while collisions with vehicles and powerlines can lead to the death of individuals (Aspinall 1996). There is also a risk that individuals may be taken from nest sites for trade (Symes et al. 2015) or because people accidentally think chicks have been abandonned. Nests may also be disturbed by photographers, and undisturbed nest site availability may be declining in certain areas.
History
It is assessed that in 1996, the national Red List status of this species would have been the same as in this assessment.
Publication
Burfield, I.J., Westrip, J., Sheldon, R.D., Hermes, C., Wheatley, H., Smith, D., Harding, K.A. Allen, D.J. and Alshamsi, O. 2021. UAE National Red List of Birds. Ministry of Climate Change and Environment, Dubai, United Arab Emirates