These nesters include species of albatrosses, petrels, skuas, gulls and terns. Isolated, uninhabited islands provide nesting sites for colonial nesting birds including pelicans, gulls and terns. Near the shoreline, gulls, herons, geese, and loons are common. They are frequent prey for birds such as herons and gulls. The cats killed cormorants, gulls, and the island night lizard. Birds such as herring gulls, northern ravens and American crows will eat unattended eggs. It suffers predation from crows, foxes, ravens, sea eagles, gulls and others. Seabirds such as gulls are not generally seen. Shags, herring gulls, and puffins are also present. Laridae is a family of both gulls and terns. It contains 30 species in 15 orders, mostly gulls and terns. Examples of birds include some species of gulls and Humboldt penguins. Pomarine jaegers are larger than common gulls. Skuas are related to gulls, waders, auks, and skimmers. As they walk, predators such as gulls and crabs grab them.