Velma has a personal secretary, Jackson Jackdaw, an anthropomorphic jackdaw. Some, including the rook and the jackdaw, are also communal nesters. The Abyssinian roller is a large bird, nearly the size of a jackdaw at . Occasionally, a sick or injured western jackdaw is mobbed until it is killed. The eggs are similar to those of the western jackdaw. It is closely related to the western jackdaw. There are four recognized subspecies of the western jackdaw. The species epithet "graculus" is Latin for a jackdaw. She also encountered the criminal Jackdaw. It houses temporary exhibitions and has a permanent exhibition on HMS Jackdaw. He commanded the "Jackdaw", a brig, which sunk under unknown circumstances sometime prior to 1735. In the early stories he has a pet jackdaw called Autolycus. A Jackdaw Society existed until 2011. He picked the Czech word "", which refers to the daurian jackdaw.