Cepphus – True guillemots

Expert divers—capable of plunging deep into the ocean to hunt for fish, squid, and other marine invertebrates

A group of seabirds, commonly known as guillemots, found in cold northern coastal areas, including the Arctic and northern Atlantic oceans. These birds are well-known for their strong swimming and diving abilities. There are three species of Cepphus: the black guillemot, the pigeon guillemot, and the spectacled guillemot. Each of these species has its own unique characteristics, but they all share similar features and behaviors that make them fascinating birds.

One of the most distinctive things about Cepphus birds is their black or dark plumage, which contrasts sharply with their white wing patches. The black guillemot, for example, has striking black feathers with a large white patch on each wing, making it easy to recognize. During the winter months, their plumage changes to a more grayish color to blend in with the icy environments they inhabit. Their legs and feet are bright red, adding another splash of color to their appearance.

Cepphus birds are excellent swimmers and divers. They spend most of their time at sea, where they hunt for food by diving underwater. Their favorite foods include small fish, crustaceans, and other marine animals. They use their wings to “fly” underwater, propelling themselves with strong strokes to chase after their prey. Their ability to dive deep and stay underwater for long periods makes them well-suited to life in the cold, rough seas where they live.

These birds also have unique nesting habits. Unlike many seabirds that nest on open cliffs, Cepphus birds prefer to nest in small crevices, such as gaps in rocks or man-made structures like piers. This helps protect their nests from predators. The female typically lays two eggs, and both parents take turns incubating the eggs and caring for the chicks. The young guillemots grow quickly and are able to swim and dive shortly after leaving the nest.