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The site was identified as internationally important for bird conservation in 2015 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.

Populations meeting IBA criteria ('key species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
A4iii Species group - seabirds	n/a	breeding (2011)	13,834 breeding pairs	A4iii

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Mawson's Huts, Cape Denison, Commonwealth Bay, George V Land, East Antarctica	Antarctic Specially Protected Area (-)	-

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Cape Denison (Antarctica). Downloaded from https://datazone.birdlife.org/site/factsheet/cape-denison-iba-antarctica on 05/01/2025.