Surfcutters are swift swimming birds, unable to fly. Their hind legs have moved forwards and their wings have become flippers. They are not natural creatures; they are the result of a potion on birds. Their presence is usually heralded by the wind going dead, a magical effect that they cause around them.
They are usually sent in a large flock to assassinate someone at sea, following them magically. The Surfcutters then weaken the hull of the ship, going into a frenzy to attack any people in the water.
The potion used to transform birds into Surfcutters is known as Nareetha's Tears. Its effect lasts eleven years and a day. If given to a Furre, the result is a Merfurre until it wears off.