Data Zone
The site was identified as important in 2015 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 |
|---|---|---|---|---|---|
| Wilson's Storm-petrel Oceanites oceanicus | LC | breeding | 1966-1968 | 200,000 breeding pairs | A4ii |
| Southern Giant Petrel Macronectes giganteus | LC | breeding | 2005-2006 | 2,351 breeding pairs | A4ii |
| Imperial Shag Leucocarbo atriceps | LC | breeding | 2006-2007 | 280 breeding pairs | A4i |
| Brown Skua Catharacta antarctica | LC | breeding | 2006 | 100 breeding pairs | A4ii |
| A4iii Species group - seabirds | n/a | breeding | 1962-2015 | 289,161 breeding pairs | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2015) may differ.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Signy Island (Antarctica). Downloaded from
https://datazone.birdlife.org/site/factsheet/signy-island-iba-antarctica on 22/11/2024.