The common Cormorant (Phalacrocorax cabro) is a sea bird. Although it is related to gulls and fulmars, its closest known relative is the pelican. It is often confused with the shag. The cormorant is well known for its habit of hanging out its wings to dry. This is because its plumage is not particularly waterproof, as it lacks the necessary preen gland that most birds have. Cormorants eat fish and also hunt inland, where they have been known to catch frogs and other amphibians. Cormorants are serious pests in fisheries, and there is often a bounty on their heads, leading fishermen to kill them in large numbers.