Wonseradeel & Workum


IBA Justification

The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:
Species Red List1 Season Year(s) Size IBA criteria
Barnacle Goose Branta leucopsis LC winter 2011-2015 60,624 individuals B3
Barnacle Goose Branta leucopsis LC non-breeding 2011-2015 90,163-128,114 individuals A4i, B1i, C2, C6
Pink-footed Goose Anser brachyrhynchus LC winter 2011-2015 51 individuals B3
Pink-footed Goose Anser brachyrhynchus LC non-breeding 2011-2015 1,742-3,068 individuals B1i, C3
Greater White-fronted Goose Anser albifrons LC non-breeding 2011-2015 42,411-48,899 individuals A4i, B1i, C3
A4iii Species group - waterbirds n/a non-breeding 2011-2015 120,486-146,684 individuals A4iii, C4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2016) may differ.



Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Wonseradeel & Workum (Netherlands). Downloaded from https://datazone.birdlife.org/site/factsheet/wonseradeel-&-workum-iba-netherlands on 23/11/2024.