Data Zone
Country/territory: Antarctica
IBA criteria met: A4iii (2015)
For more information about IBA criteria, please click here
Area: 415 ha
Site description (2015 baseline)
Klung Island and Welch Island are situated on the eastern side of Holme Bay ~2 km northwest of the Mawson Coast, Mac.Robertson Land. Klung Island is ~0.8 km long and up to 0.7 km wide, rises to 40 m, and is the largest of the Klung Islands group. Welch Island is ~1.8 km long and up to 1 km wide with a prominent narrow ridge rising to ~130 m. Klung and Welch islands are mostly ice free in summer and several lakes are present.
The IBA qualifies on the basis of the Adélie Penguin (Pygoscelis adeliae) colony present and comprises Klung Island, Welch Island and includes the intervening smaller islands and marine area.
The nearest permanent station is Mawson (AUS) ~5 km to the southwest in Holme Bay, Mawson Coast.
Key biodiversity
Approximately 11 441 breeding pairs of Adélie Penguins were present on Klung Island and on the small unnamed island immediately west, and 24 620 pairs were estimated as breeding on Welch Island, as estimated from February 2011 satellite imagery (unpublished data, H. Lynch & M. LaRue pers. comm. 2014: CI not available). Nests are concentrated along the northern coasts of the three largest islands within the IBA.
Snow Petrels (Pagodroma nivea) are known to breed on high ground on the islands, although numbers are not known (Australian Antarctic Data Centre 2014).
Non-bird biodiversity: None known.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Klung Island / Welch Island (Antarctica). Downloaded from
https://datazone.birdlife.org/site/factsheet/klung-island--welch-island-iba-antarctica on 23/11/2024.