''Poliocephalus'' and its counterparts ''poliocephala'' and ''poliocephalum'' are

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

words meaning 'grey-headed'. '' Poliocephalus'' is the name for a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

grebe Grebes () are aquatic diving birds in the order Podicipediformes . Grebes are widely distributed freshwater birds, with some species also found in marine habitats during migration and winter. Some flightless species exist as well, most notably ...

s, while '' Poliocephala'' is the name for a genus of

flies Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced ...

. The two words are often used as the second word of a

binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

. Species names ''poliocephalus'' or ''poliocephala'' could refer to any of the following:

Mammals

* the

grey-headed flying-fox The grey-headed flying fox (''Pteropus poliocephalus'') is a megabat native to Australia. The species shares mainland Australia with three other members of the genus ''Pteropus'': the little red '' P. scapulatus'', spectacled '' P. conspicilla ...

, ''Pteropus poliocephalus'' * a

tayra The tayra (''Eira barbara'') is an omnivorous animal from the weasel family, native to the Americas. It is the only species in the genus ''Eira''. Tayras are also known as the ''tolomuco'' or ''perico ligero'' in Central America, ''motete'' in ...

subspecies, ''Eira barbara poliocephala'' * the

white-headed langur The white-headed langur (''Trachypithecus leucocephalus'') is a critically endangered species of langur endemic to Guangxi, China. Taxonomy It was formerly considered a subspecies of the Cat Ba langur (''T. poliocephalus''), which is now thoug ...

, ''Trachypithecus poliocephalus''

Birds

* the

ashy-headed goose The ashy-headed goose (''Chloephaga poliocephala'') is a species of waterfowl in tribe Tadornini of subfamily Anserinae. It is found in Argentina and Chile.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife I ...

''Chloephaga poliocephala'' * the brown-chested alethe ''Pseudalethe poliocephala'' * the gray-crowned palm-tanager ''Phaenicophilus poliocephalus'' * the gray-crowned yellowthroat ''Geothlypis poliocephala'' * the

grey-crowned flatbill The grey-crowned flatbill or grey-crowned flycatcher (''Tolmomyias poliocephalus'') is a species of bird in the family Tyrannidae. It is found in humid forest in the Amazon and Atlantic Forest in South America. It closely resembles the yellow-ma ...

''Tolmomyias poliocephalus'' * the

grey-headed babbler The grey-headed babbler (''Stachyris poliocephala'') is a species of bird in the family Timaliidae. It is found in Brunei, Indonesia, Malaysia, and Thailand. Its natural habitat In ecology, the term habitat summarises the array of resou ...

''Stachyris poliocephala'' * the grey-headed greenbul ''Phyllastrephus poliocephalus'' * the

grey-headed swamphen The grey-headed swamphen (''Porphyrio poliocephalus'') is a species of swamphen occurring from the Middle East and the Indian subcontinent to southern China and northern Thailand. It used to be considered a subspecies of the purple swamphen, bu ...

''Porphyrio (porphyrio) poliocephalus'' * the

hoary-headed grebe The hoary-headed grebe (''Poliocephalus poliocephalus'') is a member of the grebe family. It breeds in southern parts of Australia; it winters throughout the island of Tasmania. The bird takes its name from the silvery-white streaking on its blac ...

''Poliocephalus poliocephalus'' * the

island thrush The island thrush (''Turdus poliocephalus'') is a common forest bird in the thrush family. Almost 50 subspecies have been described, ranging from South East Asia and Melanesia, to Samoa, exhibiting great differences in plumage. Several subspeci ...

''Turdus poliocephalus'' * the

lesser cuckoo The lesser cuckoo (''Cuculus poliocephalus'') is a species of cuckoo in the family Cuculidae. It is found in Bangladesh, Bhutan, China, Democratic Republic of the Congo, Hong Kong, India, Japan, Kenya, North Korea, South Korea, Laos, Malawi, Mya ...

''Cuculus poliocephalus'' * a

little tinamou The little tinamou (''Crypturellus soui'') is a species of tinamou. It is found in Central America, Central and South America, as well as on the Caribbean island of Trinidad. Etymology ''Crypturellus'' is formed from three Latin or Greek languag ...

subspecies ''Crypturellus soui poliocephalus'' * the

mountain nightjar The montane nightjar (''Caprimulgus poliocephalus''), mountain nightjar or Abyssinian nightjar, is a species of nightjar in the family Caprimulgidae. It is native to upland regions of Central and Eastern Africa where it is a locally common speci ...

, ''

Caprimulgus poliocephalus The montane nightjar (''Caprimulgus poliocephalus''), mountain nightjar or Abyssinian nightjar, is a species of nightjar in the family Caprimulgidae. It is native to upland regions of Central and Eastern Africa where it is a locally common speci ...

'' * the

New Guinea goshawk The grey-headed goshawk (''Accipiter poliocephalus'') is a lightly built, medium-sized bird of prey in the family Accipitridae. Description The upperparts are grey, paler on the head and neck; the wings are dark; the underparts are mainly white; ...

''Accipiter poliocephalus'' * the pink-bellied imperial pigeon ''Ducula poliocephala'' * the

west Mexican chachalaca The West Mexican chachalaca (''Ortalis poliocephala'') is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Mexico. Taxonomy and systematics The West Mexican chachalaca was first described as ' ...

''Ortalis poliocephala'' * the

yellow-lored tody-flycatcher The yellow-lored tody-flycatcher or grey-headed tody-flycatcher (''Todirostrum poliocephalum'') is a species of bird in the family Tyrannidae. It is endemic to Brazil, occurring from Southern Bahia southwards to Santa Catarina. Measures an aver ...

''Todirostrum poliocephalum''

Insects

* the moth '' Acrocercops poliocephala'' * the fly '' Trentepohlia poliocephala'' {{Taxonomy disambiguation