
Photo: Kim, Hyun-tae · CC BY 4.0 (May be cropped or resized)
Gallicrex cinerea
Habitat
Nests on dry ground in marsh vegetation
Clutch size
3–6 eggs
Size
Males 43cm; females 36cm
Weight
Males 476–650g; females 298–434g
The watercock is a rail in which the sexes differ in size: adult males are 43cm long and weigh 476 to 650g, while females are smaller at 36cm and 298 to 434g. They nest in a dry spot on the ground in marsh vegetation, laying three to six eggs (Wikipedia, general species account).
The only source read for the Bhutan guide gives these measurements and nesting details. No plumage, range, voice or diet information was found, so none is stated, and the entry is kept short.