Cinnamon Bittern

The cinnamon bittern, or chestnut bittern, is a small bittern, 38 to 41 cm long, breeding in tropical and subtropical Asia from India east to China and Indonesia. It has a short neck and longish bill. The male is uniformly cinnamon above and buff below, and the female is similar with a brown back and crown, while the juvenile is heavily streaked brown below. It is mainly resident, though some northern birds migrate short distances (Wikipedia, general species account).

It was moved from Ixobrychus to Botaurus after a 2023 study and has no subspecies. Nationally Near Threatened (Sri Lanka National Red List 2012, listed as Ixobrychus cinnamomeus).