Nannocnus ijimai = Ixobrychus cinnamomeus (cinnamon bittern, chestnut bittern) Nannocnus ijimai n. sp. adult male.
Title: Annotationes zoologicae japonenses / Nihon dōbutsugaku ihō
Year: 1897 (1890s)
Authors: Nihon Dōbutsu Gakkai; Tōkyō Dōbutsu Gakkai
Source https://commons.wikimedia.org/wiki/File%3AAnnotationes_zoologicae_japonenses_-_Nihon_d%FF%FFbutsugaku_ih%FF%FF_%281903%29_%2818424649441%29.jpg
The cinnamon bittern (Ixobrychus cinnamomeus) or chestnut bittern is a small Old World bittern, breeding in tropical and subtropical Asia from India east to China and Indonesia. Ixobrychus cinnamomeus is mainly resident, but some northern birds migrate short distances. The cinnamon bitterns breed in reed beds, nesting on platforms of reeds in shrubs. Four to six eggs are laid.
Order: Pelecaniformes
Family: Ardeidae
Genus: Ixobrychus
Species: Ixobrychus cinnamomeus (Gmelin, 1789)