Approximately 80% of the global population of the endangered bank cormorant Phalacrocorax neglectus breeds on Mercury Island and in the Ichaboe Islands. Migrating whales such as humpback whales and recovering southern right whales also visit the island during wintering seasons.Roux P.J., 2010, The year of the southern right "Weirdos": Right Whale Survey 2010, Ministry of Fisheries and Marine Resources, Namibia.
