''Ptilopachus'' is an African genus of

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...

s in the

New World quail The New World quail are small birds only distantly related to the Old World quail, but named for their similar appearance and habits. The American species are in their own family, the Odontophoridae, whereas Old World quail are in the pheasant ...

family.

Taxonomy

The genus ''Ptilopachus '' was introduced in 1837 by the English naturalist

William John Swainson William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of ...

to accommodate a single species, the

stone partridge The stone partridge (''Ptilopachus petrosus'') is a bird of the New World quail family. This largely brown bird, which commonly holds its tail raised, is found in scrubland and lightly wooded habitats, often near rocks, from Kenya and Ethiopia to ...

, which is therefore the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen( ...

. The genus name is from

Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

''ptilon'' meaning "feather" with ''pakhus'' meaning "thick" or "dense". As traditionally defined, only the

was included in this genus, but based on

genetic Genetic may refer to: *Genetics, in biology, the science of genes, heredity, and the variation of organisms **Genetic, used as an adjective, refers to genes ***Genetic disorder, any disorder caused by a genetic mutation, whether inherited or de nov ...

evidence, it now also includes

Nahan's partridge Nahan's partridge (''Ptilopachus nahani''), also known as the Nahan's francolin, is a bird traditionally placed in the family Phasianidae. As suggested by its alternative name, it was formerly believed to be a francolin and placed either in '' Fr ...

(formerly considered a

francolin Francolins are birds in the tribe Gallini that traditionally have been placed in the genus ''Francolinus'', but now commonly are divided into multiple genera. As previously defined, they were paraphyletic as the genus '' Pternistis'', which wa ...

). The study also concludes that this genus is more closely related to the

s (Odontophoridae) and might be considered their only African representative.

Description

At about in length, both are relatively small,

terrestrial Terrestrial refers to things related to land or the planet Earth. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to ...

birds with a red eye-ring, base of the bill, and legs, and brownish upperparts.McGowan, P. J. K. (1994). Francolins (genus ''Francolinus''). Pp. 489-504 in: del Hoyo, J., Elliott, A., & Sargatal, J. eds. (1994). ''

Handbook of the Birds of the World The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. ...

.'' Vol. 2. New World Vultures to Guineafowl. Lynx Edicions, Barcelon.

References

Bird genera {{Galliformes-stub

Taxonomy

Description

See also

References