
Photo: (c) 林孫鋒(Lin Sun Fong), some rights reserved (CC BY-SA) · CC BY-SA 4.0 (May be cropped or resized)
Coturnix japonica
Diet
Seeds and small invertebrates
Habitat
Grassland, farmland and open country
Range
East Asia; migratory populations winter farther south
Clutch size
7–14 eggs
Incubation period
17–20 days
Size
17–19cm
Weight
Male about 100g; female about 120g
The Japanese quail is a small mottled brown gamebird closely related to the common quail. It breeds in East Asian grassland and farmland, with many populations migrating south for winter. Birds remain concealed in low vegetation, feeding on seeds and small invertebrates, and usually run rather than fly. The species is also widely domesticated for eggs and meat (Wikipedia, general species account). It is Nationally Near Threatened (Thailand Red Data 2025).