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Location Russia (European), Ryazan' region
Central coordinates 41o 49.68' East  54o 47.65' North
IBA criteria A1, A4i, A4iii, B1i
Area 18,340 ha
Altitude 80 - 122m
Year of IBA assessment 2000

Site description The IBA is located between the Oka and Moksha rivers, far away from any villages, and contains many lakes.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater White-fronted Goose Anser albifrons passage  1996  12-15,000 individuals  medium  A4i, B1i  Least Concern 
Greylag Goose Anser anser passage  1996  600-800 individuals  medium  B1i  Least Concern 
Corncrake Crex crex breeding  1996  150-200 breeding pairs  A1  Least Concern 
A4iii Species group - waterbirds passage  1996  20,000 individuals  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Oka and Pra River Floodplains Wetlands of International Importance (Ramsar) 161,542 protected area contains site 22,400  

Local conservation groups The local conservation group below is working to support conservation at this IBA.

Name Year formed
Young ecologists center in Kasimov 2005


IUCN habitat Habitat detail Extent (% of site)
Forest Mixed woodland  10%
Shrubland Scrub  15%
Grassland Humid grasslands  80%
Wetlands (inland) Rivers and streams; Standing freshwater  15%

Land use

Land-use Extent (% of site)
agriculture 20%
forestry 10%
tourism/recreation 30%

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

References E.A.Goryunov

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Valley complex of Moksha and Oka rivers. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife