Fauna

Only 26 land mammal species are native to Ireland, because it was isolated from Europe by rising sea levels after the Ice Age. Some species, such as the red fox, hedgehog, and badger are very common, whereas others, like the Irish hare, red deer and pine marten are less so. Aquatic wild-life, such as species of turtle, shark, whale, and dolphin, are common off the coast. About 400 species of birds have been recorded in Ireland. Many of these are migratory, including the Barn Swallow. Most of Ireland’s bird species come from Iceland, Greenland, Africa among other territories. There are no snakes in Ireland and only one reptile (the common lizard) is native to the country. Extinct species include the great Irish elk, the wolf, the great auk, and others. Some previously extinct birds, such as the Golden Eagle, have recently been reintroduced after decades of extirpation. Agriculture drives current land use patterns in Ireland, limiting natural habitat preserves,[34] particularly for larger wild mammals with greater territorial needs. With no top predator in Ireland, populations of animals (such as semi-wild deer) that cannot be controlled by smaller predators (such as the fox) are controlled by annual culling.