Solitary Islands Marine Park spp"), as well as sacred kingfishers ("Todiramphus sanctus"), are regularly seen in the estuaries. Around 30 species of marine mammals have been recorded in the region, including the Short-beaked common dolphin ("Delphinus delphis") and bottlenose dolphin ("Tursiops truncates") who are residents throughout the year. Of particular interest in the Marine Park and Reserve are those species listed as threatened and subject to national and international conventions. These mammals include humpback whales ("Megaptera novaeangliae"), who are commonly encountered in the area as they migrate north to their breeding grounds in June and July, and then again between September and November when
USS Delphinus (AF-24) USS Delphinus (AF-24) USS Delphinus (AF-24) was built in 1915 as by Workman Clark and Co., Ltd., Belfast, Northern Ireland; acquired by the U.S. Navy 11 August 1942; and commissioned the same day as "San Mateo", Lieutenant O. M. Mikkelsen, USNR, in command. She was assigned the name "Delphinus" on 22 August 1942. Departing San Francisco, California, 12 September 1942, "Delphinus" arrived at Auckland, New Zealand, 4 October. She operated from this base until the end of 1945, carrying chilled and frozen provisions to forward bases in the South Pacific and to the Society, Fiji, and Samoan Islands. After calling