The national bird of Liberia is the Common Bulbul (Pepperbird) Pycnonotus barbatus
Liberia is a small country with a bird list of over 680 species, 9 of which are endangered, and a number of which are found only in Liberia and a few adjacent countries. The spectacular biodiversity of Liberia is clearly worth protecting: the forest also supports a wide range of plant and animal life and is a unique ecological niche for several rare species, such as the white-breasted guinea fowl. There have been few ornithological expeditions to Liberia however, and much still remains to be discovered about the distribution of Liberian birds.
Almost the whole of Liberia falls within the Upper Guinea forests Endemic Bird Area (EBA) and all 15 of its endemic species are found. It also lies entirely within the Guinea-Congo Forest biome and 184 species characteristic of this biome have been found herein. Liberian Greenbul Phyllastrephus leucolepis has only been recorded from a limited area in the east of the country, while Gola Malimbe Malimbus ballmanni is almost entirely confined to Liberia.
Liberia is situated in West Africa, bordering the North Atlantic Ocean to the country's southwest. The landscape is characterized by mostly flat to rolling coastal plains that contain mangroves and swamps, which rise to a rolling plateau and low mountains in the northeast. Tropical rainforests cover the hills, while elephant grass and semi-deciduous forests make up the dominant vegetation in the northern sections. The equatorial climate is hot year-round with heavy rainfall from May to October with a short interlude in mid-July to August. During the winter months of November to March dry dust-laden harmattan winds blow inland causing many problems for residents.
Liberia's watershed tends to move in a southwestern pattern towards the sea as new rains move down the forested plateau off the inland mountain range of Guinée Forestière, in Guinea. Cape Mount near the border with Sierra Leone receives the most precipitation in the nation. The country's main northwestern boundary is traversed by the Mano River while its southeast limits are bounded by the Cavalla River. Liberia's three largest rivers are St. Paul exiting near Monrovia, the river St. John at Buchanan and the Cestos River, all of which flow into the Atlantic. The Cavalla is the longest river in the nation at 515 kilometres (320 mi).
Liberia's highest point is Mount Wuteve at 1,380 metres (4,500 ft) above sea level in the northwestern Liberia range of the West Africa Mountains and the Guinea Highlands. However, Mount Nimba near Yekepa, is taller at 1,752 meters (5,748 ft) above sea level but is not wholly within Liberia as Nimba shares a border with Guinea and Côte d'Ivoire (Ivory Coast) and is their tallest mountain as well.