Marine life same environmental problems and feeding niches have resulted in similar adaptations. Examples include albatross, penguins, gannets, and auks. In general, marine birds live longer, breed later and have fewer young than terrestrial birds do, but they invest a great deal of time in their young. Most species nest in colonies, which can vary in size from a few dozen birds to millions. Many species are famous for undertaking long annual migrations, crossing the equator or circumnavigating the Earth in some cases. They feed both at the ocean's surface and below it, and even feed on each other. Marine birds can
Southern black tit Southern black tit The southern black tit or simply black tit ("Melaniparus niger") is a species of bird in the tit family Paridae, which is native to woodland habitats in southern Africa. It occurs chiefly in tropical and subtropical savanna woodland, in a semicircular arc from Angola to the Eastern Cape, South Africa. It prefers woodland dominated by broad-leaved trees, most importantly miombo, "Combretum" species, and "Burkea africana". It is especially common in the woodlands of western Zimbabwe, where densities can reach as high as fifty birds per square kilometre. The southern black tit, unlike parids of the Northern Hemisphere