Looking up information on quail, the term "coturnix quail" comes up a lot. Originally I assumed this was referring to common quail aka coturnix coturnix as opposed to japanese quail aka coturnix japonica. However I've also seen "japanese quail" and "coturnix quail" used interchangeably, suggesting that "coturnix quail" is simply another term for "japanese quail". Is this a case of an ambigious term being used inconsistently, or do people generally mean "japanese quail" when they say "coturnix quail"? Are common quail even kept as poultry/pets much?