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Location Russia (European), Bashkortostan Republic
Central coordinates 58o 32.38' East  53o 11.42' North
IBA criteria A1, B2
Area 445,670 ha
Altitude 416 - 1,118m
Year of IBA assessment 2007

Site description A rather narrow forested mountain ridge.

Key Biodiversity This ridge is a botleneck for more then 20,000 migrating raptors, which mainly breed in West Siberia.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Eastern Imperial Eagle Aquila heliaca breeding  1998  15-22 breeding pairs  good  A1, B2  Vulnerable 
Golden Eagle Aquila chrysaetos breeding  1996  7-8 breeding pairs  good  B2  Least Concern 
Circaetus gallicus breeding  1996  7-12 breeding pairs  good  B2  Not Recognised 


IUCN habitat Habitat detail Extent (% of site)
Forest   80%
Grassland Humid grasslands; Steppes and dry calcareous grassland  20%

Land use

Land-use Extent (% of site)
agriculture 60%
fisheries/aquaculture 5%
forestry 40%
urban/industrial/transport 5%

Acknowledgements The identification of IBAs and information collected between 1980 and 2009 provided by the IBA network of the Russian Bird Conservation Union (RBCU).

Related state of the world's birds case studies

References I.V.Karyakin

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Irendyk ridge. Downloaded from on 28/10/2016

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