Data Zone
Country/territory: Antarctica
IBA criteria met: A4iii (2015)
For more information about IBA criteria, please click here
Area: 40 ha
Site description (2015 baseline)
Tryne Islands are situated on the Ingrid Christensen Coast, Princess Elizabeth Land, and form the western limit of Tryne Bay which lies to the north of the Vestfold Hills, Prydz Bay.
The IBA qualifies on the basis of the Adélie Penguin (Pygoscelis adeliae) colony present, and comprises a small unnamed island of ~1.2 km by 0.5 km in the north of the Tryne Islands. The island is of low, rocky topography rising to an elevation of 32 m, and is largely ice free with several small ponds in summer.
The nearest permanent station is Davis (AUS), ~29 km to the southwest on Broad Peninsula in the Vestfold Hills.
Key biodiversity
Whitehead & Johnstone (1990) counted 16 231 breeding pairs of Adélie Penguin on the unnamed island from aerial photography acquired in Dec 1981. More recently, approximately 13 227 breeding pairs were present on the same island, as estimated from Dec 2011 satellite imagery (unpublished data H. Lynch & M. LaRue pers. comm. 2014: CI not available).
Non-bird biodiversity: The area around Tryne Islands is a Weddell Seal (Leptonychotes weddellii) pupping area (Australian Antarctic Data Centre 2012).
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tryne Islands (Antarctica). Downloaded from
https://datazone.birdlife.org/site/factsheet/tryne-islands-iba-antarctica on 25/11/2024.