A guillemot is a type of seabird belonging to the family Alcidae, which also includes puffins and murres. These birds are known for their sleek bodies and pointed wings, making them excellent divers. Guillemots primarily inhabit coastal regions in the Northern Hemisphere, where they nest on steep cliffs and rocky shores. Guillemots are often seen in large colonies, especially during the breeding season. They feed mainly on fish and other marine organisms, diving underwater to catch their prey. Their distinctive black and white plumage helps them blend into their surroundings, providing camouflage from predators like seagulls and eagles.