Mzha river valley

IBA Justification

The site was identified as important in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Corncrake Crex crex LC breeding 1996 120-140 breeding pairs A1, B2
Spotted Crake Porzana porzana LC breeding 1996 70-80 breeding pairs B3
Eurasian Bittern Botaurus stellaris LC breeding 1997 40-50 breeding pairs B2
Common Little Bittern Ixobrychus minutus LC breeding 1999 150-170 breeding pairs B2
Great White Egret Ardea alba LC breeding 1997 42-54 breeding pairs A4i, B1i
Great Snipe Gallinago media NT breeding 1996 15-25 breeding pairs A1
Black Tern Chlidonias niger LC breeding 1997 60-90 breeding pairs B2
Common Kingfisher Alcedo atthis LC breeding 1996 10-15 breeding pairs B2
Sedge Warbler Acrocephalus schoenobaenus LC breeding 1999 2,500-3,000 breeding pairs B3
Marsh Warbler Acrocephalus palustris LC breeding 1999 3,000-3,200 breeding pairs B3
Common Reed-warbler Acrocephalus scirpaceus LC breeding 1999 3,500-4,000 breeding pairs B3
Savi's Warbler Locustella luscinioides LC breeding 1999 1,500-1,700 breeding pairs B3
River Warbler Locustella fluviatilis LC breeding 1999 250-300 breeding pairs B3
Garden Warbler Sylvia borin LC breeding 1999 900-1,100 breeding pairs B3
Barred Warbler Curruca nisoria LC breeding 1999 800-900 breeding pairs B3
A4iii Species group - waterbirds n/a unknown - min 20,000 individuals A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2000).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Kukilivs'kiy Regional Zakaznik 5 protected area overlaps with site 0


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest Alluvial and very wet forest -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Water fringe vegetation, Fens, transition mires and springs -
Artificial/Terrestrial Arable land, Forestry plantations, Other urban and industrial areas -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
forestry -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Mzha river valley. Downloaded from on 03/12/2023.