taxon_rank brown-eared bulbul
The brown - eared bulbul ( Hypsipetes amaurotis ) is a medium - sized bulbul which is found from the Russian Far East ( including Karafuto ( or Sakhalin ) ) , northeastern China , the Korean Peninsula , and Japan , south to Taiwan and the Babuyan and Batanes island chains in the north of the Philippines , occasionally being found on Luzon . It is extremely common within the northern parts of its range and is a familiar bird throughout Japan , where it is called hiyodori (  ) , and Korea , where it is known as jikbakguri (  ) . In Taiwan , on the other hand , it is rare and limited to Orchid Island . Reaching a length of about 28 cm ( 11 in ) , brown - eared bulbuls are grayish - brown , with brown cheeks ( the `` brown ears '' of the common name ) and a long tail . While they prefer forested areas , they readily adapt to urban and rural environments , and their noisy squeaking calls are a familiar sound in most areas of Japan . Historically , brown - eared bulbuls were migratory birds moving to the southern parts of its range in winter , but they have taken advantage of changes in crops and farming practices in recent decades to overwinter in areas farther north than previously possible . As a result , they are considered agricultural pests in some areas of Japan . Most brown - eared bulbuls still move south in winter , often forming huge flocks during migration . In summer , brown - eared bulbuls primarily feed on insects , while they primarily take fruits and seeds in the fall and winter . The bulbuls are a ___MASK28___ , Pycnonotidae , of medium - sized passerine songbirds . Many forest ___MASK56___ are known as greenbuls , brownbuls , leafloves , or bristlebills . The ___MASK28___ is distributed across most of Africa and into the Middle East , tropical Asia to Indonesia , and north as far as Japan . A few insular ___MASK56___ occur on the tropical islands of the Indian Ocean There are about 130 ___MASK56___ in around 24 genera . While some ___MASK56___ are found in most habitats , overall African ___MASK56___ are predominantly found in rainforest whilst rainforest ___MASK56___ are rare in Asia , instead preferring more open areas . The bristlebills are a ___MASK83___ of passerine birds belonging to the ___MASK83___ Bleda in the bulbul family Pycnonotidae . They are found in the understorey of forests in West and Central Africa . They forage for insects at or near ground - level , often near water . They will follow driver ant swarms to catch prey items fleeing from the ants and they frequently join mixed - ___MASK56___ feeding flocks . The United Nations ( UN ) is an intergovernmental organization to promote international co - operation . A replacement for the ineffective League of Nations , the organization was established on 24 October 1945 after World War II in ___MASK26___ to prevent another such conflict . At its founding , the UN had 51 member states ; there are now 193 . The headquarters of the United Nations is in Manhattan , New York City , and experiences extraterritoriality . Further main offices are situated in Geneva , Nairobi , and Vienna . The organization is financed by assessed and voluntary contributions from its member states . Its objectives include maintaining international peace and security , promoting human rights , fostering social and economic development , protecting the environment , and providing humanitarian aid in cases of famine , natural disaster , and armed conflict . Taiwan , officially the Republic of China ( ROC ), is a state in East Asia . Neighbors include China ( officially the People ' s Republic of China , abbreviated as PRC ) to the west , Japan to the northeast , and the Philippines to the south . Taiwan is the most populous state that is not a member of the United Nations , and the one with the largest economy . The greenbuls are a ___MASK14___ of birds within the bulbul ___MASK28___ Pycnonotidae , found only within Africa . They are all largely drab olive - green above , and paler below , with few distinguishing features . A songbird is a bird belonging to the clade Passeri of the perching birds ( Passeriformes ). Another name that is sometimes seen as a scientific or vernacular name is Oscines , from Latin " oscen ", " a songbird ". This ___MASK14___ contains some 4 , 000 ___MASK56___ found all over the world , in which the vocal organ typically is developed in such a way as to produce a diverse and elaborate bird song . The brownbuls are two ___MASK56___ of passerine birds within the genus " Phyllastrephus " in the family Pycnonotidae . They share the genus with other ___MASK56___ of greenbuls and a leaflove .