1. Plunge Diving: Some sea birds, such as gannets and boobies, plunge dive from great heights into the water to catch fish or squid. They have streamlined bodies and powerful wings for this purpose.
2. Surface Diving: Sea birds like guillemots and alcids dive just below the water's surface to catch small fish, crustaceans, or krill. They use their wings to propel themselves underwater.
3. Skimming: Gulls, terns, and skimmers are surface feeders. They skim the water's surface with their bills open, catching small fish, insects, or other prey.
4. Plunge-feeding: Brown boobies and red-footed boobies plunge into the water with their wings folded back and their feet extended forward, spearing fish with their sharp beaks.
5. Dipping: Some birds, including fulmars and petrels, dip their bills into the water while flying low over the surface to catch small fish, plankton, or squid.
6. Aerial fishing: Frigatebirds and tropicbirds soar high in the air and then swoop down to catch flying fish or other prey near the water's surface.
7. Scavenging: Sea birds like gulls, vultures, and albatrosses scavenge for dead fish, carcasses, and other food discarded by other predators or found washed ashore.
8. Filter-feeding: Flamingos and some species of ducks use their specialized bills to filter small organisms, such as algae and crustaceans, from the water.
9. Probing: Oystercatchers and sandpipers have adapted beaks for probing in mud or sand to catch shellfish, worms, and other invertebrates.
10. Kleptoparasitism: Some sea birds, such as skuas and jaegers, harass and force other sea birds to drop their caught food, which they then steal mid-air.
These are just a few examples of the diverse feeding techniques employed by sea birds to survive and thrive in their marine environments.