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Long-legged Buzzard Buteo rufinus

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be fluctuating, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Taxonomic source(s)
Porter, R. F.; Kirwan, G. M. 2010. Studies of Socotran birds VI. The taxonomic status of the Socotra Buzzard. Bulletin of the British Ornithologists' Club 130(2): 116-131.

Taxonomic note
Buteo buteo (Sibley and Monroe 1990, 1993) was split into B. buteo and B. bannermani by Hazevoet (1995) but Clouet and Wink (2000) and Hazevoet (1995) noted that bannermani has a close genetic affinity with B. rufinus: bannermanni and rufinus are thus currently treated as conspecific pending further study. A previously unnamed Buteo from Socotra (formerly included within B. rufinus by the BirdLife Taxonomic Working Group) has now been formally named Buteo socotraensis (Porter and Kirwan 2010), and has been recognised as a species by the BTWG.

Population justification
The population is estimated at 100,000 individuals (Ferguson-Lees and Christie. 2001).

Trend justification
The population is suspected to fluctuate in response to vole populations (Ferguson-Lees and Christie 2001).

Ecology
Behaviour North African birds are resident, but birds breeding in Eurasia migrate south to North Africa and southern Asia, leaving their breeding grounds in August and September and returning in March and April (del Hoyo et al. 1994). It is generally observed singly, in pairs or in small family groups, but is more gregarious on migration when larger flocks can form (Ferguson-Lees and Christie 2001). Habitat It is a species of open areas, particularly steppe and semi-desert, and has been recorded up to 3,500 m (del Hoyo et al. 1994). Diet It feeds mainly on small mammals (del Hoyo et al. 1994). Breeding site The nest is made on cliff ledges and crags (del Hoyo et al. 1994). Management information Birds require sufficient outcrops, trees or disused nests on which to build their own nests (del Hoyo et al. 1994).

Threats
The population in Israel declined as a result of pesticide poisoning in the 1950s, but has since recovered (Ferguson-Lees and Christie 2001). It is very highly vulnerable to the impacts of potential wind energy developments (Strix 2012).

References
del Hoyo, J.; Elliott, A.; Sargatal, J. 1994. Handbook of the Birds of the World, vol. 2: New World Vultures to Guineafowl. Lynx Edicions, Barcelona, Spain.

Ferguson-Lees, J.; Christie, D. A. 2001. Raptors of the world. Christopher Helm, London.

Strix. 2012. Developing and testing the methodology for assessing and mapping the sensitivity of migratory birds to wind energy development. BirdLife International, Cambridge.

Text account compilers
Khwaja, N. & Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Buteo rufinus. Downloaded from http://www.birdlife.org on 12/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 12/07/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

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To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Long-legged buzzard (Buteo rufinus) 0

Key facts
Current IUCN Red List category Least Concern
Family Accipitridae (Osprey, kites, hawks and eagles)
Species name author (Cretzschmar, 1827)
Population size 100000 mature individuals
Population trend Stable
Distribution size (breeding/resident) 8,890,000 km2
Country endemic? No
Links to further information
- Additional Information on this species