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In calm weather the Sooty Shearwater flies low over the ocean with quick, stiff beats of its narrow wings; in windy conditions, it glides and scales effortlessly over the waves. Sociable at sea, it is often seen in gatherings of hundreds or even thousands, flying in long lines or resting in dense rafts on the water. Although it is often the most abundant seabird off the coast of California, the Sooty Shearwater nests only deep in the Southern Hemisphere, around Australia, New Zealand, and southern South America.

A common seabird off our Atlantic Coast, seldom coming close to shore except during storms. Often forages in flocks. Commonly feeds around fishing boats, fighting over scraps and offal, seemingly fearless of humans. Although Great Shearwaters are often very numerous in North American waters, they nest only on a few islands in the South Atlantic.

This small seabird is widespread in the Atlantic, Pacific, and Indian oceans, mostly in tropical waters; in North America, it is regular over warm waters off the southeastern coast. At sea it is usually solitary or in small groups.

Patterned somewhat like a gull but very different in flight behavior, the fulmar flies fast with quick wingbeats and stiff-winged glides, wheeling effortlessly in strong winds, often swinging up in high arcs over the waves. In North America, it breeds mainly in high Arctic Canada and on islands in the Bering Sea.

This dark, narrow-winged seabird occurs in large flocks over cold waters. It is very similar to the Sooty Shearwater and, like that species, is a visitor from far to the south. Short-tailed Shearwaters nest only around Australia, but in the northern summer they may penetrate north past the Bering Strait. Generally found off Alaska in summer, farther south off west coast in winter.

Formerly a rare visitor to waters off northeastern North America, the Manx Shearwater has increased in recent decades, and has been found nesting on this side of the Atlantic. Many small black-and-white shearwaters in other oceans are closely related, and are sometimes classified as belonging to this same species.

Widespread in the tropical Pacific and Indian Oceans, this seabird is a very rare visitor to our west coast. Underparts may be either light or dark; both color forms have reached California. The long, wedge-shaped tail makes this shearwater more graceful and maneuverable than many of its relatives.

This species as a stronger flight action than most shearwaters, with slower wingbeats and prolonged glides, sometimes soaring high above waves. Nesting on islands in the Mediterranean Sea and eastern Atlantic, it regularly visits waters off the east coast of North America. Although a few get as far north as Canada, the species is most common off the southeastern states.