Niue is renowned as one of the best locations in the world to view humpback whales. Many humpback whales (Megaptera novaeangliae)shelter in the deep waters of the bays around Avatele and Tamakautoga. Between the months of June and October, the whales are often visible for hours on end, sometimes a mere 50 metres from the water’s edge.
The humpback has a distinctive body shape, with unusually long pectoral fins and a knobbly head. It is an acrobatic animal, often breaching and slapping the water. Males produce a complex song, which lasts for 10 to 20 minutes and is repeated for hours at a time.
Found in oceans and seas around the world, humpback whales typically migrate up to 25,000 kilometres each year. Humpbacks feed only in summer, in polar waters, and migrate to tropical or sub-tropical waters to breed and give birth in the winter.
During the winter, humpbacks fast and live off their fat reserves. The species' diet consists mostly of krill and small fish. Humpbacks have a diverse repertoire of feeding methods, including the bubble net feeding technique.
Nafa as known as the underside flukes of mature female. This part depicted on the 80c stamp. Each individual whale can be identified by the unique markings on their tails, which are used by researchers to develop the history information.