The site was identified as important in 2009 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 |
---|---|---|---|---|---|
Rusty Blackbird Euphagus carolinus | VU | passage | 2006 | 155 individuals | A1 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2009) may differ.
Year | Protected Area | Designation | % overlap with IBA |
---|---|---|---|
- | Willow Slough | Fish And Wildlife Area | 100 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Willow Slough Fish and Wildlife Area (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/willow-slough-fish-and-wildlife-area-iba-usa on 22/11/2024.