Great Lanouf Ravens
Commonly known as Babble-Crows. Large blue/black messenger birds, identifiable vis-à-vis other ravens by a faint white banding on the wing, specially trained to memorize and repeat spoken messages. They will only repeat the message if a specific key phrase is spoken aloud.
They are highly valued by anyone who can manage to purchase or train one.
Not infrequently confused with the Lesser Dadwi Raven, nicknamed the Traitor-Crow.