yes
The smallest merganser is called the Hooded Merganser (Lophodytes cucullatus). It is a small North American duck species with striking black and white plumage and a distinctive crest on its head.
The duck you're referring to is most likely the Crested Duck, which has a distinctive crest of feathers on its head resembling a Mohawk. Despite the resemblance to a Mallard, Crested Ducks are a distinct breed with unique characteristics.
Merganser
Auckland Merganser was created in 1841.
fish
smew
Fish
A baby merganser is called a "duckling." Merganser ducklings are known for their distinctive appearance, often having a mix of downy feathers and a sleek shape that helps them swim and dive. They typically stay close to their mother for protection and guidance as they learn to navigate their environment.
smew
A merganser will eat insects, crustaceans, tadpoles, mollusks, fish, amphibians, and invertebrates it finds when diving under fresh or salt waters.
no there not endanger
Hooded Plover was created in 1789.