noun, masculine/blɔ̃.ʒjɔs/
bittern (bird of the family Ardeidae and genus Botaurus, specifically those species formerly in the genus Ixobrychus)
Related: blongios à cou jaune, blongios à dos noir, blongios canelle, blongios d'Australie, blongios de Chine, blongios de Schrenck, blongios de Sturm, blongios nain, blongios varié, butor blongios
Introduced (as Blongio) by Mathurin Jacques Brisson, French naturalist, who did not indicate its origin. The only clue is that two of the specimens he used came from a Swiss collector, so the word might be of Swiss origin. The variant blongion appeared in the 19th century.