Range. - Northern Pacific Ocean in the summer, extending from Japan and Alaska southward. Supposed to breed in the southern hemisphere, as well as probably on some of the Aleutians in Alaska.
Dark-bodied Shearwater. Slender-billed Shearwater.
Range. - North Pacific, breeding on the Revil-lagigedo Islands off the coast of Mexico, and probably on some of the small islands in the Gulf of California.