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Location Russia (European), Tver region
Central coordinates 33o 54.37' East  56o 5.28' North
IBA criteria A1
Area 4,140 ha
Altitude 200 m
Year of IBA assessment 2000

Site description Forested and agriculture landscape on the watershed of Osuga and Ramenka rivers.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Corncrake Crex crex breeding  1997  20-30 breeding pairs  medium  A1  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Forest Mixed woodland  50%
Artificial - terrestrial Arable land; Highly improved re-seeded landscapes  50%

Land use

Land-use Extent (% of site)
agriculture 50%
not utilised 50%

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 V.I.Nikolaev

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Sources of Osuga river. Downloaded from on 20/10/2016

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