Ko te hūnuku a tētahi momo mai i tētahi nōhanga ki tētahi i wāhi kē, me te hoki atu anō. Ko te tuna, ko ētahi ika, ko ētahi manu hei tauira o ngā momo hekeheke. Hekeheke ai rātou ki te whakawhānau, ki te kimi kai rānei i ia tau.
The movement of some species from one habitat to another in a different location, and then returning to their original location. Eels, some fish and birds are examples of migratory species. Seasonal migration occurs in order for the species to breed or to seek food.