With a normal call described as the cross between a dove’s cooing and a kittens purr, Royal Guard Dragons communicate with each other using sound and a sophisticated form of telepathy.
Royal Guard Dragons' vocabulary is comprised of audible and inaudible chirps, clicks, purrs, whistles and coos.
In addition, researchers have confirmed Royal Guard Dragons rely upon a well documented but little understood form of telepathy. It is through this powerful telepathic ability that Royal Guard Dragons communicate with humans by picking up human thoughts/emotions and implanting their own thoughts and emotions in humans' minds.
When telepathically communicating with humans, Royal Guard Dragons can "hear" several humans' thoughts at one time but can only "talk" to one human at a time.
While a Royal Guard Dragon can only communicate with one human at a time, if more than one Royal Guard Dragon is communicating with the same human at the same time, that human can amazingly simultaneously hear and reply to each Royal Guard Dragon.