Definition
Merginae is a taxonomic subtribe within the duck, goose, and swan family (Anatidae). This group encompasses several species of 'merganser' ducks, known for their slender, serrated bills, specialized for catching fish. These ducks are often referred to as 'fish ducks' due to their diet. They're diving ducks, meaning they submerge themselves completely to hunt. Their streamlined bodies help them navigate underwater. Merginae highlights the classification of these fish-eating ducks. They occupy diverse aquatic habitats.