Alca Torda is a scientific name given to a species of seabird known as razorbill. The word "razorbill" itself may have originated from the bird's sharp, compressed beak. Other synonyms for Alca Torda include torda, black-billed auk, and lesser auk. The razorbill is a small black-and-white bird that belongs to the auk family and is found in the temperate regions of the northern hemisphere. These birds usually lay a single egg on rocky cliffs by the sea and feed on small fish, crustaceans, and insects. Razorbill populations are currently threatened by habitat loss, oil spills, and fishing nets.