If you would like more information on this project, please contact Robert Frank Kooij, [email protected] The Brazilian Merganser (Mergus octosetaceus) is the only surviving species of Mergini (Order Anseriformes) in the Southern Hemisphere.  It is a locally and globally endangered species1,2 and one of the most endangered waterfowl3,4, with possibly fewer than 250 birds remaining […]