Merisäille

Merisäille is a Finnish term that can refer to several species of seabirds belonging to the family Alcidae, commonly known as auks. These birds are typically found in the northern Pacific and Atlantic Oceans. They are well-adapted to marine life, possessing streamlined bodies, short wings, and powerful legs set far back on their bodies, which make them excellent swimmers and divers.

Merisäille species are often characterized by their striking black and white plumage, which provides camouflage in their aquatic environment. During the breeding season, many species form large colonies on coastal cliffs and islands. Their diet consists primarily of small fish, crustaceans, and mollusks, which they catch by diving underwater.

While the term "merisäille" can be broadly applied, it is most frequently associated with species like the puffins, razorbills, and guillemots. These birds play an important role in the marine ecosystem, serving as a food source for predators and influencing the populations of their prey species. Their populations are monitored due to their sensitivity to environmental changes, such as pollution and overfishing.