Shadow Birds were Raven Guard pilots during the Great Crusade and Horus Heresy, who were well known for their ability to avoid detection by all but the most sophisticated of defense networks.

暗影鸟是大远征和荷鲁斯叛乱时期的暗鸦守卫飞行员，他们以能够避开除最复杂的防御网络之外的所有防御网络而闻名。