Mergus

Genus of birds

Mergus is the genus containing the typical mergansers ( mur-GAN-sərz), fish-eating ducks in the subfamily Anatinae. The common merganser or goosander (Mergus merganser) and red-breasted merganser (M. serrator) have broad ranges in the northern hemisphere. The Brazilian merganser (M. octosetaceus) is a South American duck, and one of the six most threatened waterfowl in the world, with possibly fewer than 250 birds in the wild.

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