Data Zone
The site was identified as important in 2012 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 |
|---|---|---|---|---|---|
| Aleutian Tern Onychoprion aleuticus | VU | breeding | 1974-2009 | 2,428 individuals | A4i |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| - | Copper Sands Rna Origional Boundary | Research Natural Area | 1 |
| - | Copper Sands | Research Natural Area | <1 |
| 1978 | Copper River Delta | Critical Habitat Area | 85 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tiedeman Slough Colony (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/tiedeman-slough-colony-iba-usa on 23/11/2024.