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Location Bulgaria
Central coordinates 23o 48.65' East  41o 32.68' North
IBA criteria A3, B2, C6
Area 20,421 ha
Altitude 405 - 1,241m
Year of IBA assessment 2005

Bulgarian Society for the Protection of Birds



Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Rock Partridge Alectoris graeca resident  1996  15-25 breeding pairs  good  A3  Near Threatened 
White Stork Ciconia ciconia breeding  2004  57 breeding pairs  good  B2, C6  Least Concern 
Short-toed Snake-eagle Circaetus gallicus breeding  1996  4-5 breeding pairs  good  B2, C6  Least Concern 
Masked Shrike Lanius nubicus breeding  1996  2-10 breeding pairs  good  A3  Least Concern 
Calandra Lark Melanocorypha calandra resident  2005  86 breeding pairs  medium  C6  Least Concern 
Olive-tree Warbler Hippolais olivetorum breeding  1996  10 breeding pairs  medium  A3  Least Concern 
Barred Warbler Sylvia nisoria breeding  1996  50-100 breeding pairs  medium  C6  Least Concern 
Sardinian Warbler Sylvia melanocephala resident  1996  2 breeding pairs  good  A3  Least Concern 
Subalpine Warbler Sylvia cantillans breeding  1996  10 breeding pairs  medium  A3  Least Concern 
Western Rock-nuthatch Sitta neumayer resident  1996  6-12 breeding pairs  good  A3  Least Concern 
Ortolan Bunting Emberiza hortulana breeding  2005  967 breeding pairs  medium  C6  Least Concern 

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Mesta Valley. Downloaded from http://www.birdlife.org on 05/07/2015

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