Marine birds are species that primarily depend on the ocean for their food and habitat. They are often found along coastlines, islands, and open seas. Common examples include seabirds like gulls, albatrosses, and puffins. These birds have adaptations such as webbed feet and specialized beaks that help them catch fish and other marine organisms. Many marine birds are migratory, traveling long distances between breeding and feeding grounds. They play a crucial role in marine ecosystems by helping to control fish populations and contributing to nutrient cycling. Conservation efforts are important to protect their habitats from threats like pollution and climate change.