 Longer wings and low wing loading are typical of more pelagic species, while diving species have shorter wings.Species such as the wandering albatross, which forage over huge areas of sea, have a reduced capacity for powered flight and are dependent on a type of gliding called dynamic soaring (where the wind deflected by waves provides lift) as well as slope soaring.Seabirds also almost always have webbed feet, to aid movement on the surface as well as assisting diving in some species.