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 |
|---|---|---|---|---|---|
| Roseate Tern Sterna dougallii | LC | breeding | 1993-1999 | 1,056-1,747 breeding pairs | A4i |
| Common Tern Sterna hirundo | LC | breeding | 1999 | 10,000 breeding pairs | A4i |
| A4iii Species group - waterbirds | n/a | breeding | - | 10,000-19,999 breeding pairs | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Great Gull Island (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/great-gull-island-iba-usa on 23/11/2024.