Cinnamon Bittern

The Cinnamon Bittern (Ixobrychus cinnamomeus) is a small heron of the family Ardeidae distributed across South and Southeast Asia. As the common name suggests, adult males are predominantly rich cinnamon-brown to chestnut-rufous on the head, neck, breast, and upperparts, making them one of the most uniformly colored members of the genus Ixobrychus. Females are similar but browner and more streaked on the breast and upperparts. Both sexes show pale buff underparts with a darker median stripe. Total length is 38–40 cm, placing it among the larger small bitterns.

The Cinnamon Bittern inhabits a broad range of freshwater wetlands, including reedbeds, rice paddies, tall grass swamps, marshes, overgrown ditches, and the vegetated margins of lakes and rivers. It is one of the most common small bitterns in South and Southeast Asia, ranging from Pakistan and India east through Nepal, Bangladesh, Sri Lanka, southern China, and throughout much of Southeast Asia including the islands of the Malay Archipelago, the Philippines, and Sulawesi. In many parts of Asia it is closely associated with rice cultivation, foraging in flooded paddies during the growing season.

The species is primarily crepuscular and nocturnal, though it may forage at any time of day in overcast conditions. It feeds on small fish, frogs, aquatic insects, earthworms, and small crustaceans, hunting in the characteristic bittern style of standing motionless and waiting for prey to approach. It moves through dense marsh vegetation by grasping stems with its feet, using the long, widely spread toes characteristic of the genus.

Breeding occurs throughout the range during the monsoon season and the subsequent period of maximum wetland development. The nest is a platform of plant stems placed in reeds, rice paddies, tall grass, or low shrubs over water. The clutch typically contains four to six white eggs. Incubation lasts approximately 18 days, and both parents care for the chicks. The species may produce multiple broods in a season in tropical parts of its range.

The Cinnamon Bittern is listed as Least Concern globally and is relatively common and widespread, though dependent on wetland and rice paddy habitats that face ongoing conversion and drainage pressure.