The reef has been identified as an Important Bird Area (IBA) by BirdLife International because its cays, with a collective land area of about a hectare, have supported over 1% of the world population of lesser crested terns (with up to 5000 nests recorded).[2]
References
^BirdLife International. (2011). Important Bird Areas factsheet: Sudbury Reef. Downloaded from http://www.birdlife.org on 2011-10-25.