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Location Bulgaria, Burgas
Central coordinates 26o 47.50' East  42o 37.38' North
IBA criteria A1, B1i, C1, C3, C6
Area 2,872 ha
Altitude 143 - 226m
Year of IBA assessment 2005

Bulgarian Society for the Protection of Birds



Site description A reservoir which replaced the former Straldza marsh, surrounded by meadows and arable land. It does not freeze in winter. Typha is predominant along the banks. Wet meadows are dominated by Carex, Poa and Lolium. There are lines of Populus and Robinia trees. Land-uses include hunting, fish-farming and haymaking.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater White-fronted Goose Anser albifrons winter  1997  6,178-8,500 individuals  good  B1i, C3  Least Concern 
Red-breasted Goose Branta ruficollis winter  1997  46-210 individuals  good  A1, C1  Endangered 
Mallard Anas platyrhynchos winter  1997  22,755 individuals  medium  B1i, C3  Least Concern 
Eurasian Bittern Botaurus stellaris resident  1999  5 breeding pairs  good  C6  Least Concern 
Montagu's Harrier Circus pygargus resident  1998  5-6 breeding pairs  good  C6  Least Concern 
Corncrake Crex crex breeding  2005  21 breeding pairs  good  A1, C1  Least Concern 
Burhinus oedicnemus breeding  1998  7 breeding pairs  good  C6  Not Recognised 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Reka Mochuritza - BG0000196 Habitats Directive 6,911 protected area is adjacent to site 0  
Straldzha - BG0000205 Habitats Directive 882 protected area overlaps with site 684  
Straldzha Complex - BG0002028 Birds Directive 2,872 is identical to site 2,872  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Grassland Humid grasslands  10%
Wetlands (inland) Standing freshwater; Water fringe vegetation  90%
Artificial - terrestrial Perennial crops, orchards and groves  -

Land use

Land-use Extent (% of site)
fisheries/aquaculture 90%
agriculture 8%
hunting -

Protection status National None International None

Related state of the world's birds case studies

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Straldzha Complex. Downloaded from http://www.birdlife.org on 17/09/2014

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