Birdley is Dr. Toadley's pet bird and also serves as his messenger.Birdley's first debut was in The Dr. vs. Dr. Saga: It all Begins and is also set to appear in The Dr. vs. Dr. Saga: Dr. Toadley's Revenge.
Birdley is a major protagonist in Dr. vs. Dr. Saga's game when the viewpoint is of Dr. Toadley, and usually, a minor antagonist in Dr. Mush's viewpoint. His debut game was The Dr. vs. Dr. Saga: It all Begins and is set to appear The Dr. vs. Dr. Saga: Dr. Toadley's Revenge.
Birdley and Dr. Toadley are good friends. Dr. Toadley also owns Birdley and has employed as a messenger. They have known each other for a very long time and enjoy each other's company.