Audru polder

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
Whooper Swan Cygnus cygnus LC passage 1996 300-600 individuals B1i
Tundra Swan Cygnus columbianus LC passage 1996 5,000-17,500 individuals A4i, B1i
Barnacle Goose Branta leucopsis LC passage 1996 3,000-6,000 individuals A4i, B1i
Greylag Goose Anser anser LC passage 1996 400 individuals B1i
A4iii Species group - waterbirds n/a passage 1996 8,700-24,000 individuals A4iii

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


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Artificial/Terrestrial Highly improved re-seeded landscapes -
Wetlands (inland) -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Audru polder. Downloaded from on 04/10/2023.