These little bird are known by a few different names - Red Billed Leiothrix, Pekin Robin, Pekin Nightingale, Japanese Nightingale and Japanese (Hill) Robin. They are usually found in India, Bhutan, Nepal, Burma and parts of Tibet. They were introduced to a few countries around the world including Western Australia but only become established in parts of France and the Hawaiian Island of Oahu
Pekin Robin measures 3.5 x 2.5 inches and is painted on 300gsm smooth Arches watercolour paper.
Many thanks to Clare Smith for the reference photo.