Biebrza river valley (955)
Poland, Europe
Biodiversity elements triggering KBA criteria
| Taxonomic group | Scientific name | Common name | IUCN Red List category | Year | KBA criteria |
|---|---|---|---|---|---|
| Aves | Anser albifrons | Greater White-fronted Goose | LC | 2010 | D1a |
| Aves | Acrocephalus paludicola | Aquatic Warbler | VU | 2010 | A1b, A1d, B1 |
Other species not triggering KBA criteria
| Taxonomic group | Scientific name | Common name | IUCN Red List Category | Year | |
|---|---|---|---|---|---|
| Aves | Chlidonias hybrida | Whiskered Tern | LC | 2010 | |
| Aves | Porzana parva | Little Crake | LC | 2010 | |
| Aves | Tetrao tetrix | Black Grouse | LC | 2010 | |
| Aves | Porzana porzana | Spotted Crake | LC | 2010 | |
| Aves | Picus canus | Grey-faced Woodpecker | LC | 2010 | |
| Aves | Crex crex | Corncrake | LC | 2010 | |
| Aves | Cygnus columbianus | Tundra Swan | LC | 2010 | |
| Aves | Dendrocopos leucotos | White-backed Woodpecker | LC | 2010 | |
| Aves | Anas acuta | Northern Pintail | LC | 2010 | |
| Aves | Chlidonias niger | Black Tern | LC | 2010 | |
| Aves | Limosa limosa | Black-tailed Godwit | NT | 2010 | |
| Aves | Philomachus pugnax | Ruff | LC | 2010 | |
| Aves | Haliaeetus albicilla | White-tailed Sea-eagle | LC | 2010 | |
| Aves | Ciconia nigra | Black Stork | LC | 2010 | |
| Aves | Asio flammeus | Short-eared Owl | LC | 2010 | |
| Aves | Circus pygargus | Montagu's Harrier | LC | 2010 | |
| Aves | Botaurus stellaris | Eurasian Bittern | LC | 2010 | |
| Aves | Ciconia ciconia | White Stork | LC | 2010 | |
| Aves | Bubo bubo | Eurasian Eagle-owl | LC | 2010 | |
| Aves | Gallinago media | Great Snipe | NT | 2010 | |
| Aves | Luscinia svecica | Bluethroat | LC | 2010 | |
| Aves | Aquila pomarina | Lesser Spotted Eagle | LC | 2010 | |
| Aves | Circus aeruginosus | Western Marsh-harrier | LC | 2010 | |
| Aves | Casmerodius albus | Great White Egret | LC | 2010 | |
| Aves | Ficedula parva | NR | 2010 | | |
| Aves | Aquila clanga | Greater Spotted Eagle | VU | 2010 | |
| Aves | Anas penelope | Eurasian Wigeon | LC | 2010 | |
| Aves | Grus grus | Common Crane | LC | 2010 | |
| Aves | Numenius arquata | Eurasian Curlew | NT | 2010 | |
Recommended citation
Key Biodiversity Areas Partnership (2025) Key Biodiversity Areas factsheet: Biebrza river valley. Extracted from the World Database of Key Biodiversity Areas. Developed by the Key Biodiversity Areas Partnership: BirdLife International, IUCN, American Bird Conservancy, Amphibian Survival Alliance, Conservation International, Critical Ecosystem Partnership Fund, Global Environment Facility, Re:wild, NatureServe, Rainforest Trust, Royal Society for the Protection of Birds, World Wildlife Fund and Wildlife Conservation Society. Downloaded from https://keybiodiversityareas.org/ on Dec 14, 2025.