Great Gull Island

IBA Criteria

Year of most recent IBA criteria assessment: 2012

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
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

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Great Gull Island. Downloaded from on 26/10/2021.