The Cinnamon Bittern is a small heron with cinnamon-colored plumage. It has been recorded breeding in reedbeds in Hong Kong.
Adult males have bright chestnut heads, backs, and upperwings. Females have a grey wash above, pale spots on the wing coverts, and prominent stripes down the neck.
In Hong Kong, breeding has been reported in reedbeds.
It builds nests of sticks, stems, and leaves in reeds, rice, bamboo, or shrubs, lining them with dead leaves or fine grass. It nests alone or in loose groups; clutches contain two to five eggs, usually three or four.
Males have buff-white throats with a broad, ragged dark-brown stripe down the foreneck. Their legs are yellow-green.
Juveniles are drab chestnut, with pale crown streaks and large sandy spots on the upperwings. Dark-brown stripes run down the white throat.
An extinction-risk assessment has not been added yet.