A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin oscen, "songbird". The Passeriformes contains 5,000 or so species 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 tetrakas, also known as the Malagasy warblers, are a recently validated family of songbirds. They were formally named Bernieridae in 2010. The family currently consists of eleven species of small forest birds. These birds are all endemic to Madagascar.
Appert's tetraka formerly known as Appert's greenbul is a small passerine bird endemic to the south-west of Madagascar. The species was only described in 1972, and has been the subject of considerable taxonomic confusion. It was initially placed in the greenbul genus Phyllastrephus, and later with the Old World warblers in the genus Bernieria. Recent research indicates it is part of an endemic Malagasy radiation currently known as the Malagasy warblers.
The grey-crowned tetraka, formerly known as the grey-crowned greenbul, is a species of Malagasy warbler in the family Bernieridae. It is found only in eastern and northern Madagascar.
The long-billed bernieria, formerly known as long-billed greenbul and sometimes as common tetraka or long-billed tetraka, is a songbird species endemic to Madagascar. It is the only species placed in the genus Bernieria. Its natural habitat is subtropical or tropical moist lowland forests.
The dusky tetraka is a species of Old World warbler in the family Bernieridae. It is found only in Madagascar. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
The white-throated oxylabes is a species of passerine bird that is endemic to Madagascar. It is the only species placed in the genus Oxylabes. Formerly considered as a member of the Old World warbler family Sylviidae, it has been moved to the family Bernieridae — the Malagasy warblers. Its natural habitat is subtropical or tropical moist lowland forests.
Phyllastrephus is a songbird genus in the bulbul family Pycnonotidae. Most of the species in the genus are typical greenbuls, though two are brownbuls, and one is a leaflove.
Xanthomixis is a genus of birds in the Malagasy warbler family, Bernieridae. It contains the tetrakas.
The Proctophyllodidae are a family of the Acarina (mite) order Astigmata. They contain many feather mites. The Alloptidae and Trouessartiidae were in earlier times included here as subfamilies.
Schwiebea is a genus of mites in the family Acaridae. It is among the largest in the family with over 60 species.
Proctophyllodes is a genus of feather mites, found on passerine birds.
Syringophilidae is a family of mites, commonly known as quill mites. They are obligatory ectoparasites of birds, and inhabit their feather quills where they feed on subcutaneous tissue and fluids. Typically the Syringophilinae inhabit all but the body feathers, while the Picobinae specialize in infecting the body feathers internally. Quill mites have been recorded from hundreds of bird species, belonging to 95 families and 24 orders. Much knowledge of their hosts, diversity and systematics has been obtained since the late 1990s, but as of 2020 these were still considered to be poorly known.
Syringophilopsis is a genus of mites that parasitize the feathers of passeriform birds.
Chaetodactylus is a genus of parasitic mite primarily associated with solitary bees with over 20 species.
Roubikia is a genus of bee-associated mites occurring in the neotropics. They are mutualists or commensals, and feed on fatty acids from floral oils and most likely on fungi. The type species is Chaetodactylus panamensis.
