Old World Quail

Although all species commonly referred to as "Old World quail" are in the same tribe, they are paraphyletic with respect to the other members of the tribe, such as Alectoris, Tetraogallus, Ammoperdix, Margaroperdix, and Pternistis.

Old World quail
Brown quail, Synoicus ypsilophorus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Galliformes
Family:	Phasianidae
Subfamily:	Phasianinae
Tribe:	Coturnicini
Groups included
Coturnix Ophrysia Perdicula Synoicus
Cladistically included but traditionally excluded taxa
Alectoris Ammoperdix Margaroperdix Pternistis Tetraogallus

New World quail are also found in the Galliformes, but are not in the same family (Odontophoridae). Buttonquails are not closely related at all, but are named for their similar appearance. They are presently placed in the family Turnicidae of the Charadriiformes, classified as shorebirds.

The collective noun for a group of quail is flock, bevy or covey.

Old World quail may refer to the following species of Coturnicini:

• Genus Synoicus
  • Brown quail, Synoicus ypsilophorus
  • Snow Mountain quail, Synoicus monorthonyx
  • Blue quail, Synoicus adansonii
  • King quail, Synoicus chinensis
• Genus Coturnix
  • Rain quail, Coturnix coromandelica
  • Harlequin quail, Coturnix delegorguei
  • Common quail, Coturnix coturnix
  • †Canary Islands quail, Coturnix gomerae (fossil)
  • Japanese quail, Coturnix japonica
  • †New Zealand quail, Coturnix novaezelandiae (extinct)
  • Stubble quail, Coturnix pectoralis
• Genus Perdicula
  • Jungle bush quail, Perdicula asiatica
  • Rock bush quail, Perdicula argoondah
  • Painted bush quail, Perdicula erythrorhyncha
  • Manipur bush quail, Perdicula manipurensis
• Genus Ophrysia
  • Himalayan quail, Ophrysia superciliosa (critically endangered/extinct)

Old World quail are small, plump terrestrial birds. They are seed eaters, but will also take insects and similar small prey. They nest on the ground and are capable of short, rapid bursts of flight. Some species, such as the Japanese and common quail, are migratory and fly for long distances. Some quail are farmed in large numbers. The common and Japanese (or coturnix) quail are both raised for table meat or to produce eggs. They are also readily hunted, often artificially stocked on game farms or to supplement wild populations.

Migrating common quail are known to eat some poisonous seeds with no apparent ill effects but store the poison in their body fat, poisoning people who subsequently eat these birds; this condition is known as "coturnism".